Search | arXiv e-print repository

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"/> <meta name="viewport" content="width=device-width, initial-scale=1"/>  <link rel="apple-touch-icon" sizes="180x180" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon-16x16.png"> <link rel="manifest" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/site.webmanifest"> <link rel="mask-icon" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/safari-pinned-tab.svg" color="#b31b1b"> <link rel="shortcut icon" href="https://static.arxiv.org/static/base/1.0.0a5/images/icons/favicon.ico"> <meta name="msapplication-TileColor" content="#b31b1b"> <meta name="msapplication-config" content="images/icons/browserconfig.xml"> <meta name="theme-color" content="#b31b1b">  <title>Search | arXiv e-print repository</title> <script defer src="https://static.arxiv.org/static/base/1.0.0a5/fontawesome-free-5.11.2-web/js/all.js"></script> <link rel="stylesheet" href="https://static.arxiv.org/static/base/1.0.0a5/css/arxivstyle.css" /> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ messageStyle: "none", extensions: ["tex2jax.js"], jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [ ['$','$'], ["\$","\$"] ], displayMath: [ ['$$','$$'], ["\\[","\\]"] ], processEscapes: true, ignoreClass: '.*', processClass: 'mathjax.*' }, TeX: { extensions: ["AMSmath.js", "AMSsymbols.js", "noErrors.js"], noErrors: { inlineDelimiters: ["$","$"], multiLine: false, style: { "font-size": "normal", "border": "" } } }, "HTML-CSS": { availableFonts: ["TeX"] } }); </script> <script src='//static.arxiv.org/MathJax-2.7.3/MathJax.js'></script> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/notification.js"></script> <link rel="stylesheet" href="https://static.arxiv.org/static/search/0.5.6/css/bulma-tooltip.min.css" /> <link rel="stylesheet" href="https://static.arxiv.org/static/search/0.5.6/css/search.css" /> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g=" crossorigin="anonymous"></script> <script src="https://static.arxiv.org/static/search/0.5.6/js/fieldset.js"></script> <style> radio#cf-customfield_11400 { display: none; } </style> </head> <body> <header><a href="#main-container" class="is-sr-only">Skip to main content</a>  <div class="attribution level is-marginless" role="banner"> <div class="level-left"> <a class="level-item" href="https://cornell.edu/"><img src="https://static.arxiv.org/static/base/1.0.0a5/images/cornell-reduced-white-SMALL.svg" alt="Cornell University" width="200" aria-label="logo" /></a> </div> <div class="level-right is-marginless"><p class="sponsors level-item is-marginless"><span id="support-ack-url">We gratefully acknowledge support from<br /> the Simons Foundation, <a href="https://info.arxiv.org/about/ourmembers.html">member institutions</a>, and all contributors. <a href="https://info.arxiv.org/about/donate.html">Donate</a></span></p></div> </div>  <div class="identity level is-marginless"> <div class="level-left"> <div class="level-item"> <a class="arxiv" href="https://arxiv.org/" aria-label="arxiv-logo"> <img src="https://static.arxiv.org/static/base/1.0.0a5/images/arxiv-logo-one-color-white.svg" aria-label="logo" alt="arxiv logo" width="85" style="width:85px;"/> </a> </div> </div> <div class="search-block level-right"> <form class="level-item mini-search" method="GET" action="https://arxiv.org/search"> <div class="field has-addons"> <div class="control"> <input class="input is-small" type="text" name="query" placeholder="Search..." aria-label="Search term or terms" /> <p class="help"><a href="https://info.arxiv.org/help">Help</a> | <a href="https://arxiv.org/search/advanced">Advanced Search</a></p> </div> <div class="control"> <div class="select is-small"> <select name="searchtype" aria-label="Field to search"> <option value="all" selected="selected">All fields</option> <option value="title">Title</option> <option value="author">Author</option> <option value="abstract">Abstract</option> <option value="comments">Comments</option> <option value="journal_ref">Journal reference</option> <option value="acm_class">ACM classification</option> <option value="msc_class">MSC classification</option> <option value="report_num">Report number</option> <option value="paper_id">arXiv identifier</option> <option value="doi">DOI</option> <option value="orcid">ORCID</option> <option value="author_id">arXiv author ID</option> <option value="help">Help pages</option> <option value="full_text">Full text</option> </select> </div> </div> <input type="hidden" name="source" value="header"> <button class="button is-small is-cul-darker">Search</button> </div> </form> </div> </div>  <div class="container"> <div class="user-tools is-size-7 has-text-right has-text-weight-bold" role="navigation" aria-label="User menu"> <a href="https://arxiv.org/login">Login</a> </div> </div> </header> <main class="container" id="main-container"> <div class="level is-marginless"> <div class="level-left"> <h1 class="title is-clearfix"> Showing 1–50 of 623 results for author: <span class="mathjax">Alkhazov, G</span> </h1> </div> <div class="level-right is-hidden-mobile">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> <div class="content"> <form method="GET" action="/search/hep-ex" aria-role="search"> Searching in archive <strong>hep-ex</strong>. <a href="/search/?searchtype=author&query=Alkhazov%2C+G">Search in all archives.</a> <div class="field has-addons-tablet"> <div class="control is-expanded"> <label for="query" class="hidden-label">Search term or terms</label> <input class="input is-medium" id="query" name="query" placeholder="Search term..." type="text" value="Alkhazov, G"> </div> <div class="select control is-medium"> <label class="is-hidden" for="searchtype">Field</label> <select class="is-medium" id="searchtype" name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> </div> <div class="control"> <button class="button is-link is-medium">Search</button> </div> </div> <div class="field"> <div class="control is-size-7"> <label class="radio"> <input checked id="abstracts-0" name="abstracts" type="radio" value="show"> Show abstracts </label> <label class="radio"> <input id="abstracts-1" name="abstracts" type="radio" value="hide"> Hide abstracts </label> </div> </div> <div class="is-clearfix" style="height: 2.5em"> <div class="is-pulled-right"> <a href="/search/advanced?terms-0-term=Alkhazov%2C+G&terms-0-field=author&size=50&order=-announced_date_first">Advanced Search</a> </div> </div> <input type="hidden" name="order" value="-announced_date_first"> <input type="hidden" name="size" value="50"> </form> <div class="level breathe-horizontal"> <div class="level-left"> <form method="GET" action="/search/"> <div style="display: none;"> <select id="searchtype" name="searchtype"><option value="all">All fields</option><option value="title">Title</option><option selected value="author">Author(s)</option><option value="abstract">Abstract</option><option value="comments">Comments</option><option value="journal_ref">Journal reference</option><option value="acm_class">ACM classification</option><option value="msc_class">MSC classification</option><option value="report_num">Report number</option><option value="paper_id">arXiv identifier</option><option value="doi">DOI</option><option value="orcid">ORCID</option><option value="license">License (URI)</option><option value="author_id">arXiv author ID</option><option value="help">Help pages</option><option value="full_text">Full text</option></select> <input id="query" name="query" type="text" value="Alkhazov, G"> <ul id="abstracts"><li><input checked id="abstracts-0" name="abstracts" type="radio" value="show"> <label for="abstracts-0">Show abstracts</label></li><li><input id="abstracts-1" name="abstracts" type="radio" value="hide"> <label for="abstracts-1">Hide abstracts</label></li></ul> </div> <div class="box field is-grouped is-grouped-multiline level-item"> <div class="control"> <span class="select is-small"> <select id="size" name="size"><option value="25">25</option><option selected value="50">50</option><option value="100">100</option><option value="200">200</option></select> </span> <label for="size">results per page</label>. </div> <div class="control"> <label for="order">Sort results by</label> <span class="select is-small"> <select id="order" name="order"><option selected value="-announced_date_first">Announcement date (newest first)</option><option value="announced_date_first">Announcement date (oldest first)</option><option value="-submitted_date">Submission date (newest first)</option><option value="submitted_date">Submission date (oldest first)</option><option value="">Relevance</option></select> </span> </div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=150" class="pagination-link " aria-label="Page 4" aria-current="page">4 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=200" class="pagination-link " aria-label="Page 5" aria-current="page">5 </a> </li> <li><span class="pagination-ellipsis">…</span></li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.01602">arXiv:2203.01602</a> <span> [<a href="https://arxiv.org/pdf/2203.01602">pdf</a>, <a href="https://arxiv.org/format/2203.01602">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.129.091801">10.1103/PhysRevLett.129.091801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of the $Z\rightarrow 渭^+ 渭^-$ angular coefficients in the forward region of $pp$ collisions at $\sqrt{s}=13$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (988 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.01602v2-abstract-short" style="display: inline;"> The first study of the angular distribution of $渭^+ 渭^-$ pairs produced in the forward rapidity region via the Drell-Yan reaction $pp \rightarrow 纬^{*}/Z +X \rightarrow l^+ l^- + X$ is presented, using data collected with the LHCb detector at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.1 $\rm{fb}^{-1}$. The coefficients of the five leading terms in the angular… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.01602v2-abstract-full').style.display = 'inline'; document.getElementById('2203.01602v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.01602v2-abstract-full" style="display: none;"> The first study of the angular distribution of $渭^+ 渭^-$ pairs produced in the forward rapidity region via the Drell-Yan reaction $pp \rightarrow 纬^{*}/Z +X \rightarrow l^+ l^- + X$ is presented, using data collected with the LHCb detector at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.1 $\rm{fb}^{-1}$. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. The results are compared to various theoretical predictions of the $Z$-boson production mechanism and can also be used to probe transverse-momentum-dependent parton distributions within the proton. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.01602v2-abstract-full').style.display = 'none'; document.getElementById('2203.01602v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-048.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-048, CERN-EP-2022-030 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 129 (2022) 091801 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.09106">arXiv:2202.09106</a> <span> [<a href="https://arxiv.org/pdf/2202.09106">pdf</a>, <a href="https://arxiv.org/format/2202.09106">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.092013">10.1103/PhysRevD.105.092013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the charm mixing parameter $y_{CP} - y_{CP}^{K蟺}$ using two-body $D^0$ meson decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.09106v2-abstract-short" style="display: inline;"> A measurement of the ratios of the effective decay widths of $D^0 \to 蟺^-蟺^+$ and $D^0 \to K^-K^+$ decays over that of $D^0 \to K^-蟺^+$ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of $13 \, \mathrm{TeV}$, corresponding to an integrated luminosity of $6 \, \mathrm{fb^{-1}}$. These observables give access to the charm mixing parameters… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.09106v2-abstract-full').style.display = 'inline'; document.getElementById('2202.09106v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.09106v2-abstract-full" style="display: none;"> A measurement of the ratios of the effective decay widths of $D^0 \to 蟺^-蟺^+$ and $D^0 \to K^-K^+$ decays over that of $D^0 \to K^-蟺^+$ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of $13 \, \mathrm{TeV}$, corresponding to an integrated luminosity of $6 \, \mathrm{fb^{-1}}$. These observables give access to the charm mixing parameters $y_{CP}^{蟺蟺} - y_{CP}^{K蟺}$ and $y_{CP}^{KK} - y_{CP}^{K蟺}$, and are measured as $y_{CP}^{蟺蟺} - y_{CP}^{K蟺} = (6.57 \pm 0.53 \pm 0.16) \times 10^{-3}$, $y_{CP}^{KK} - y_{CP}^{K蟺} = (7.08 \pm 0.30 \pm 0.14) \times 10^{-3}$, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is $y_{CP} - y_{CP}^{K蟺} = (6.96 \pm 0.26 \pm 0.13) \times 10^{-3}$, which is four times more precise than the previous world average. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.09106v2-abstract-full').style.display = 'none'; document.getElementById('2202.09106v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-041.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-041, CERN-EP-2022-022 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 105 (2022), 092013 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05648">arXiv:2202.05648</a> <span> [<a href="https://arxiv.org/pdf/2202.05648">pdf</a>, <a href="https://arxiv.org/format/2202.05648">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP05(2022)038">10.1007/JHEP05(2022)038 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the doubly charmed baryon decay $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.05648v3-abstract-short" style="display: inline;"> The $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of $13\mathrm{\,Te\kern -0.1em V}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$. The $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ decay is reconstructed partially, where the photon from the $\it{螢_{c}^{'+} \to 螢_{c}^{+}纬}$ decay is… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05648v3-abstract-full').style.display = 'inline'; document.getElementById('2202.05648v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.05648v3-abstract-full" style="display: none;"> The $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of $13\mathrm{\,Te\kern -0.1em V}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$. The $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ decay is reconstructed partially, where the photon from the $\it{螢_{c}^{'+} \to 螢_{c}^{+}纬}$ decay is not reconstructed and the $pK^-蟺^+$ final state of the $\it{螢_{c}^{+}}$ baryon is employed. The $\it{螢_{cc}^{++}\to 螢_{c}^{'+}蟺^{+}}$ branching fraction relative to that of the $\it{螢_{cc}^{++}\to 螢_{c}^{+}蟺^{+}}$ decay is measured to be $1.41 \pm 0.17 \pm 0.10$, where the first uncertainty is statistical and the second systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05648v3-abstract-full').style.display = 'none'; document.getElementById('2202.05648v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-052.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-052, CERN-EP-2022-016 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 05 (2022) 038 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.04045">arXiv:2202.04045</a> <span> [<a href="https://arxiv.org/pdf/2202.04045">pdf</a>, <a href="https://arxiv.org/format/2202.04045">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP04(2022)046">10.1007/JHEP04(2022)046 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of charmonium and charmonium-like contributions in $B^+ \rightarrow J/蠄畏K^+$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.04045v2-abstract-short" style="display: inline;"> A study of $B^+ \rightarrow J/蠄畏K^+$ decays, followed by $J/蠄\rightarrow 渭^+ 渭^-$ and $畏\rightarrow 纬纬$, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb$^{-1}$. The $J/蠄畏$ mass spectrum is investigated for contributions from charmonia and charmonium-like states… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04045v2-abstract-full').style.display = 'inline'; document.getElementById('2202.04045v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.04045v2-abstract-full" style="display: none;"> A study of $B^+ \rightarrow J/蠄畏K^+$ decays, followed by $J/蠄\rightarrow 渭^+ 渭^-$ and $畏\rightarrow 纬纬$, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb$^{-1}$. The $J/蠄畏$ mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the $B^+\rightarrow \left( 蠄_2(3823) \rightarrow J/蠄畏\right) K^+$ and $B^+\rightarrow \left( 蠄(4040) \rightarrow J/蠄畏\right) K^+$ decays with significance of 3.4 and 4.7~standard deviations, respectively. This constitutes the~first~evidence for the $蠄_2(3823) \rightarrow J/蠄畏$ decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04045v2-abstract-full').style.display = 'none'; document.getElementById('2202.04045v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 7 figures. All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-047.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2022-009, LHCb-PAPER-2021-047 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 2022, 46 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.10167">arXiv:2201.10167</a> <span> [<a href="https://arxiv.org/pdf/2201.10167">pdf</a>, <a href="https://arxiv.org/format/2201.10167">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP05(2022)067">10.1007/JHEP05(2022)067 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the decay $B^0\to蠁渭^+渭^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (978 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.10167v2-abstract-short" style="display: inline;"> A search for the decay $B^0\to蠁渭^+渭^-$ is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb$^{-1}$. No evidence for the $B^0\to 蠁渭^+ 渭^-$ decay is found and an upper limit on the branching fraction, excluding the $蠁$ and charmonium regions in the dimuon spectrum, of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.10167v2-abstract-full').style.display = 'inline'; document.getElementById('2201.10167v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.10167v2-abstract-full" style="display: none;"> A search for the decay $B^0\to蠁渭^+渭^-$ is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb$^{-1}$. No evidence for the $B^0\to 蠁渭^+ 渭^-$ decay is found and an upper limit on the branching fraction, excluding the $蠁$ and charmonium regions in the dimuon spectrum, of $4.4 \times 10^{-3}$ at a 90$\%$ credibility level, relative to that of the $B^0_s \to 蠁渭^+ 渭^-$ decay, is established. Using the measured $B^0_s\to蠁渭^+渭^-$ branching fraction and assuming a phase-space model, the absolute branching fraction of the decay $B^0\to 蠁渭^+ 渭^-$ in the full $q^2$ range is determined to be less than $3.2 \times 10^{-9}$ at a 90$\%$ credibility level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.10167v2-abstract-full').style.display = 'none'; document.getElementById('2201.10167v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-042.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-042, CERN-EP-2021-267 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP05(2022)067 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.03497">arXiv:2201.03497</a> <span> [<a href="https://arxiv.org/pdf/2201.03497">pdf</a>, <a href="https://arxiv.org/format/2201.03497">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.191803">10.1103/PhysRevLett.128.191803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the decay $ 螞_b^0\rightarrow 螞_c^+蟿^-\overline谓_蟿$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (981 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.03497v4-abstract-short" style="display: inline;"> The first observation of the semileptonic $b$-baryon decay $ 螞_b^0 \rightarrow 螞_c^+ 蟿^-\overline谓_蟿$, with a significance of $6.1\,蟽$, is reported using a data sample corresponding to 3 fb$^{-1}$ of integrated luminosity, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV at the LHC. The $蟿^-$ lepton is reconstructed in the hadronic decay to three charged pions. The branch… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.03497v4-abstract-full').style.display = 'inline'; document.getElementById('2201.03497v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.03497v4-abstract-full" style="display: none;"> The first observation of the semileptonic $b$-baryon decay $ 螞_b^0 \rightarrow 螞_c^+ 蟿^-\overline谓_蟿$, with a significance of $6.1\,蟽$, is reported using a data sample corresponding to 3 fb$^{-1}$ of integrated luminosity, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV at the LHC. The $蟿^-$ lepton is reconstructed in the hadronic decay to three charged pions. The branching fraction ${\mathcal{B}}(螞_b^0 \rightarrow 螞_c^+蟿^-\overline谓_蟿) = (1.50 \pm 0.16\pm 0.25\pm 0.23)\%$ is obtained, where uncertainties are statistical, systematic and from the external branching fraction of the normalisation channel $螞_b^0\rightarrow 螞_c^+蟺^-蟺^+蟺^-$. The ratio of semileptonic branching fractions ${\mathcal{R}}( 螞_c^+)\equiv {\mathcal{B}}( 螞_b^0 \rightarrow 螞_c^+ 蟿^-\overline谓_蟿)/{\mathcal{B}}( 螞_b^0 \rightarrow 螞_c^+ 渭^-\overline谓_渭)$ is derived to be $0.242 \pm 0.026 \pm 0.040\pm 0.059$, where the external branching fraction uncertainty from the channel $螞_b^0\rightarrow 螞_c^+渭^-\overline谓_渭$ contributes to the last term. This result is in agreement with the Standard Model prediction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.03497v4-abstract-full').style.display = 'none'; document.getElementById('2201.03497v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">"All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-044.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1708.08856</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-044, CERN-EP-2021-265 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PhysRevLett128,191803 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.11428">arXiv:2112.11428</a> <span> [<a href="https://arxiv.org/pdf/2112.11428">pdf</a>, <a href="https://arxiv.org/format/2112.11428">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.072005">10.1103/PhysRevD.105.072005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the $B^0\rightarrow\overline{D}^{*0}K^{+}蟺^{-}$ and $B_s^0\rightarrow\overline{D}^{*0}K^{-}蟺^{+}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (978 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.11428v2-abstract-short" style="display: inline;"> The first observations of $B^0\rightarrow\overline{D}^{*}(2007)^{0}K^{+}蟺^{-}$ and $B_s^0\rightarrow\overline{D}^{*}(2007)^{0}K^{-}蟺^{+}$ decays are presented, and their branching fractions relative to that of the $B^0\rightarrow\overline{D}^{*}(2007)^{0}蟺^{+}蟺^{-}$ decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.11428v2-abstract-full').style.display = 'inline'; document.getElementById('2112.11428v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.11428v2-abstract-full" style="display: none;"> The first observations of $B^0\rightarrow\overline{D}^{*}(2007)^{0}K^{+}蟺^{-}$ and $B_s^0\rightarrow\overline{D}^{*}(2007)^{0}K^{-}蟺^{+}$ decays are presented, and their branching fractions relative to that of the $B^0\rightarrow\overline{D}^{*}(2007)^{0}蟺^{+}蟺^{-}$ decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the angle $纬$ of the CKM unitarity triangle. It is also important to understand them as a source of potential background in determinations of $纬$ from $B^{+}\rightarrow DK^{+}$ and $B^{0}\rightarrow DK^{+}蟺^{-}$ decays. The analysis is based on a sample corresponding to an integrated luminosity of $5.4 ~\rm{fb}^{-1}$ of proton--proton collision data at $13 ~\rm{TeV}$ centre-of-mass energy recorded with the LHCb detector. The $\overline{D}^{*}(2007)^{0}$ mesons are fully reconstructed in the $\overline{D}^{0}蟺^{0}$ and $\overline{D}^{0}纬$ channels, with the $\overline{D}^{0} \rightarrow K^{+}蟺^{-}$ decay. A novel weighting method is used to subtract background while simultaneously applying an event-by-event efficiency correction to account for resonant structures in the decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.11428v2-abstract-full').style.display = 'none'; document.getElementById('2112.11428v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-043.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-043, CERN-EP-2021-262 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 105, 072005 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.10617">arXiv:2112.10617</a> <span> [<a href="https://arxiv.org/pdf/2112.10617">pdf</a>, <a href="https://arxiv.org/format/2112.10617">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2022)099">10.1007/JHEP07(2022)099 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Constraints on the CKM angle $纬$ from $B^\pm\to Dh^\pm$ decays using $D\rightarrow h^\pm h^{\prime\mp}蟺^0$ final states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.10617v2-abstract-short" style="display: inline;"> A data sample collected with the LHCb detector corresponding to an integrated luminosity of 9 fb$^{-1}$ is used to measure eleven $CP$ violation observables in $B^\pm\to Dh^\pm$ decays, where $h$ is either a kaon or a pion. The neutral $D$ meson decay is reconstructed in the three-body final states: $K^\pm蟺^\mp蟺^0$}; $蟺^+蟺^-蟺^0$; $K^+K^-蟺^0$ and the suppressed $蟺^\pm K^\mp蟺^0$ combination. The mod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.10617v2-abstract-full').style.display = 'inline'; document.getElementById('2112.10617v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.10617v2-abstract-full" style="display: none;"> A data sample collected with the LHCb detector corresponding to an integrated luminosity of 9 fb$^{-1}$ is used to measure eleven $CP$ violation observables in $B^\pm\to Dh^\pm$ decays, where $h$ is either a kaon or a pion. The neutral $D$ meson decay is reconstructed in the three-body final states: $K^\pm蟺^\mp蟺^0$}; $蟺^+蟺^-蟺^0$; $K^+K^-蟺^0$ and the suppressed $蟺^\pm K^\mp蟺^0$ combination. The mode where a large $CP$ asymmetry is expected, $B^\pm\to [蟺^\pm K^\mp蟺^0]_DK^\pm$, is observed with a significance greater than seven standard deviations. The ratio of the partial width of this mode relative to that of the favoured mode, $B^\pm\to [K^\pm蟺^\mp蟺^0]_D K^\pm$, is $R_{{\rm ADS}(K)} = (1.27\pm0.16\pm0.02)\times 10^{-2}$. Evidence for a large $CP$ asymmetry is also seen: $A_{{\rm ADS}(K)} = -0.38\pm0.12\pm0.02$. Constraints on the CKM angle $纬$ are calculated from the eleven reported observables. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.10617v2-abstract-full').style.display = 'none'; document.getElementById('2112.10617v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-036.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-036, CERN-EP-2021-255 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 07 (2022) 099 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.08435">arXiv:2112.08435</a> <span> [<a href="https://arxiv.org/pdf/2112.08435">pdf</a>, <a href="https://arxiv.org/format/2112.08435">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/17/02/P02028">10.1088/1748-0221/17/02/P02028 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Identification of charm jets at LHCb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.08435v2-abstract-short" style="display: inline;"> The identification of charm jets is achieved at LHCb for data collected in 2015-2018 using a method based on the properties of displaced vertices reconstructed and matched with jets. The performance of this method is determined using a dijet calibration dataset recorded by the LHCb detector and selected such that the jets are unbiased in quantities used in the tagging algorithm. The charm-tagging… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.08435v2-abstract-full').style.display = 'inline'; document.getElementById('2112.08435v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.08435v2-abstract-full" style="display: none;"> The identification of charm jets is achieved at LHCb for data collected in 2015-2018 using a method based on the properties of displaced vertices reconstructed and matched with jets. The performance of this method is determined using a dijet calibration dataset recorded by the LHCb detector and selected such that the jets are unbiased in quantities used in the tagging algorithm. The charm-tagging efficiency is reported as a function of the transverse momentum of the jet. The measured efficiencies are compared to those obtained from simulation and found to be in good agreement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.08435v2-abstract-full').style.display = 'none'; document.getElementById('2112.08435v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-DP-2021-006.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-DP-2021-006 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 17 P02028 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.07458">arXiv:2112.07458</a> <span> [<a href="https://arxiv.org/pdf/2112.07458">pdf</a>, <a href="https://arxiv.org/format/2112.07458">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2022)026">10.1007/JHEP07(2022)026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurement of forward $Z$ boson production in proton-proton collisions at $\sqrt{s} = 13$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (988 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.07458v3-abstract-short" style="display: inline;"> A precision measurement of the $Z$ boson production cross-section at $\sqrt{s} = 13$ TeV in the forward region is presented, using $pp$ collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb$^{-1}$. The production cross-section is measured using $Z\rightarrow渭^+渭^-$ events within the fiducial region defined as pseudorapidity $2.0<畏<4.5$ and transverse mo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.07458v3-abstract-full').style.display = 'inline'; document.getElementById('2112.07458v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.07458v3-abstract-full" style="display: none;"> A precision measurement of the $Z$ boson production cross-section at $\sqrt{s} = 13$ TeV in the forward region is presented, using $pp$ collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb$^{-1}$. The production cross-section is measured using $Z\rightarrow渭^+渭^-$ events within the fiducial region defined as pseudorapidity $2.0<畏<4.5$ and transverse momentum $p_{T}>20$ GeV/$c$ for both muons and dimuon invariant mass $60<M_{渭渭}<120$ GeV/$c^2$. The integrated cross-section is determined to be \begin{equation*} 蟽(Z\rightarrow渭^+渭^-) = 196.4 \pm 0.2 \pm 1.6 \pm 3.9~pb, \end{equation*} where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measured results are in agreement with theoretical predictions within uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.07458v3-abstract-full').style.display = 'none'; document.getElementById('2112.07458v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">60 pages, 15 figures. All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-037.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-037, CERN-EP-2021-246 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 07 (2022) 026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.02013">arXiv:2112.02013</a> <span> [<a href="https://arxiv.org/pdf/2112.02013">pdf</a>, <a href="https://arxiv.org/format/2112.02013">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP03(2022)153">10.1007/JHEP03(2022)153 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $螞_b^0\rightarrow D^+ p 蟺^-蟺^-$ and $螞_b^0\rightarrow D^{*+} p 蟺^-蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (985 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.02013v2-abstract-short" style="display: inline;"> The multihadron decays $螞_b^0\rightarrow D^+ p 蟺^-蟺^-$ and $螞_b^0\rightarrow D^{*+} p 蟺^-蟺^-$ are observed in data corresponding to an integrated luminosity of 3fb$^{-1}$, collected in proton-proton collisions at centre-of-mass energies of 7 and 8TeV by the LHCb detector. Using the~decay $螞_b^0\rightarrow 螞_c^+ 蟺^+ 蟺^-蟺^-$ as a normalisation channel, the ratio of branching fractions is measured to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.02013v2-abstract-full').style.display = 'inline'; document.getElementById('2112.02013v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.02013v2-abstract-full" style="display: none;"> The multihadron decays $螞_b^0\rightarrow D^+ p 蟺^-蟺^-$ and $螞_b^0\rightarrow D^{*+} p 蟺^-蟺^-$ are observed in data corresponding to an integrated luminosity of 3fb$^{-1}$, collected in proton-proton collisions at centre-of-mass energies of 7 and 8TeV by the LHCb detector. Using the~decay $螞_b^0\rightarrow 螞_c^+ 蟺^+ 蟺^-蟺^-$ as a normalisation channel, the ratio of branching fractions is measured to be $$ \frac { {\mathcal{B}} ( 螞_b^0\rightarrow D^+ p 蟺^-蟺^- ) } { {\mathcal{B}} ( 螞_b^0\rightarrow 螞_c^+ 蟺^+ 蟺^-蟺^- ) } \times \frac { {\mathcal{B}} ( D^+ \rightarrow K^-蟺^+蟺^+) } { {\mathcal{B}} ( 螞_c^+ \rightarrow p K^-蟺^+ ) } = ( 5.35 \pm 0.21 \pm 0.16 ) \% \,, $$ where the first uncertainty is statistical and the second systematic. The ratio of branching fractions for $螞_b^0\rightarrow D^{*+} p 蟺^-蟺^-$ and $螞_b^0\rightarrow D^+ p 蟺^-蟺^-$ decays is found to be $$ \frac{ {\mathcal{B}} ( 螞_b^0\rightarrow D^{*+} p 蟺^-蟺^- )} { {\mathcal{B}} ( 螞_b^0\rightarrow D^{+} p 蟺^-蟺^- )} \times ( {\mathcal{B}}( D^{*+} \rightarrow 蟺^0 ) + {\mathcal{B}}( D^{*+} \rightarrow 纬)) = ( 61.3 \pm 4.3 \pm 4.0 ) \% \,. $$ <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.02013v2-abstract-full').style.display = 'none'; document.getElementById('2112.02013v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-040.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-040, CERN-EP-2021-237 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. 2022, 153 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.11339">arXiv:2111.11339</a> <span> [<a href="https://arxiv.org/pdf/2111.11339">pdf</a>, <a href="https://arxiv.org/format/2111.11339">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP03(2022)109">10.1007/JHEP03(2022)109 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searches for rare $B_s^0$ and $B^0$ decays into four muons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (987 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.11339v2-abstract-short" style="display: inline;"> Searches for rare $B_s^0$ and $B^0$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 $\text{fb}^{-1}$. Direct decays and decays via light scalar and $J/蠄$ resonances are considered. No evidence for the six decays searched for is found and upper limits at the 95% confidence level on their branchin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11339v2-abstract-full').style.display = 'inline'; document.getElementById('2111.11339v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.11339v2-abstract-full" style="display: none;"> Searches for rare $B_s^0$ and $B^0$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 $\text{fb}^{-1}$. Direct decays and decays via light scalar and $J/蠄$ resonances are considered. No evidence for the six decays searched for is found and upper limits at the 95% confidence level on their branching fractions ranging between $1.8\times10^{-10}$ and $2.6\times10^{-9}$ are set. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11339v2-abstract-full').style.display = 'none'; document.getElementById('2111.11339v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-039.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-039, CERN-EP-2021-236 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 03 (2022) 109 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.10194">arXiv:2111.10194</a> <span> [<a href="https://arxiv.org/pdf/2111.10194">pdf</a>, <a href="https://arxiv.org/format/2111.10194">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.L051104">10.1103/PhysRevD.105.L051104 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the photon polarization in $螞_b \to 螞纬$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.10194v2-abstract-short" style="display: inline;"> The photon polarization in $b \to s 纬$ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of $螞_b \to 螞纬$ decays. A data sample corresponding to an integrated luminosity of $6\;fb^{-1}$ collected by the LHCb experiment in $pp$ collisions at a center-of-mass energy of $13\;TeV$ is used. The photon polarization is measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.10194v2-abstract-full').style.display = 'inline'; document.getElementById('2111.10194v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.10194v2-abstract-full" style="display: none;"> The photon polarization in $b \to s 纬$ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of $螞_b \to 螞纬$ decays. A data sample corresponding to an integrated luminosity of $6\;fb^{-1}$ collected by the LHCb experiment in $pp$ collisions at a center-of-mass energy of $13\;TeV$ is used. The photon polarization is measured to be $伪_纬= 0.82^{\,+\,0.17\,+\,0.04}_{\,-\,0.26\,-\,0.13}$, where the first uncertainty is statistical and the second systematic. This result is in agreement with the Standard Model prediction and previous measurements in b-meson decays. Charge-parity breaking effects are studied for the first time in this observable and found to be consistent with $CP$ symmetry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.10194v2-abstract-full').style.display = 'none'; document.getElementById('2111.10194v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-030.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-030, CERN-EP-2021-230 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D105 (2022) L051104 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.03327">arXiv:2111.03327</a> <span> [<a href="https://arxiv.org/pdf/2111.03327">pdf</a>, <a href="https://arxiv.org/format/2111.03327">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.221801">10.1103/PhysRevLett.128.221801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Angular analysis of $D^0 \to 蟺^+蟺^-渭^+渭^-$ and $D^0 \to K^+K^-渭^+渭^-$ decays and search for $CP$ violation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Alves%2C+A+A">A. A. Alves Jr</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (993 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.03327v2-abstract-short" style="display: inline;"> The first full angular analysis and an updated measurement of the decay-rate $CP$ asymmetry of the $D^0 \to 蟺^+蟺^-渭^+渭^-$ and $D^0 \to K^+K^-渭^+渭^-$ decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. The data set corresponds to an integrated luminosity of 9 fb$^{-1}$. The full set of $CP$-averaged angu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.03327v2-abstract-full').style.display = 'inline'; document.getElementById('2111.03327v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.03327v2-abstract-full" style="display: none;"> The first full angular analysis and an updated measurement of the decay-rate $CP$ asymmetry of the $D^0 \to 蟺^+蟺^-渭^+渭^-$ and $D^0 \to K^+K^-渭^+渭^-$ decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. The data set corresponds to an integrated luminosity of 9 fb$^{-1}$. The full set of $CP$-averaged angular observables and their $CP$ asymmetries are measured as a function of the dimuon invariant mass. The results are consistent with expectations from the standard model and with $CP$ symmetry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.03327v2-abstract-full').style.display = 'none'; document.getElementById('2111.03327v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-035.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-035, CERN-EP-2021-212 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128, 221801 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.03001">arXiv:2111.03001</a> <span> [<a href="https://arxiv.org/pdf/2111.03001">pdf</a>, <a href="https://arxiv.org/format/2111.03001">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2022)065">10.1007/JHEP01(2022)065 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the $B_c^+$ decays into charmonia and three light hadrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (986 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.03001v1-abstract-short" style="display: inline;"> Using proton-proton collision data, corresponding to an integrated luminosity of $9fb^{-1}$ collected with the LHCb detector, seven decay modes of the $B_c^+$ meson into a $J/蠄$ or $蠄(2S)$ meson and three charged hadrons, kaons or pions, are studied. The decays $B_c^+\rightarrow ( 蠄(2S) \rightarrow J/蠄蟺^+ 蟺^-)蟺^+ $, $B_c^+\rightarrow 蠄(2S)蟺^+蟺^+蟺^-$, $B_c^+\rightarrow J/蠄K^+蟺^+蟺^-$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.03001v1-abstract-full').style.display = 'inline'; document.getElementById('2111.03001v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.03001v1-abstract-full" style="display: none;"> Using proton-proton collision data, corresponding to an integrated luminosity of $9fb^{-1}$ collected with the LHCb detector, seven decay modes of the $B_c^+$ meson into a $J/蠄$ or $蠄(2S)$ meson and three charged hadrons, kaons or pions, are studied. The decays $B_c^+\rightarrow ( 蠄(2S) \rightarrow J/蠄蟺^+ 蟺^-)蟺^+ $, $B_c^+\rightarrow 蠄(2S)蟺^+蟺^+蟺^-$, $B_c^+\rightarrow J/蠄K^+蟺^+蟺^-$ and $B_c^+\rightarrow K^+K^+K^-$ are observed for the first time, and evidence for the $B_c^+\rightarrow 蠄(2S)K^+K^-蟺^+$ decay is found, where $J/蠄$ and $蠄(2S)$ mesons are reconstructed in their dimuon decay modes. The ratios of branching fractions between the different $B_c^+$ decays are reported as well as the fractions of the decays proceeding via intermediate resonances. The results largely support the factorisation approach used for a theoretical description of the studied decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.03001v1-abstract-full').style.display = 'none'; document.getElementById('2111.03001v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 5 figures, All figures and tables are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-034.html (LHCb public pages)"</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-034, CERN-EP-2021-216 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.01607">arXiv:2111.01607</a> <span> [<a href="https://arxiv.org/pdf/2111.01607">pdf</a>, <a href="https://arxiv.org/format/2111.01607">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Centrality determination in heavy-ion collisions with the LHCb detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (929 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.01607v1-abstract-short" style="display: inline;"> The centrality of heavy-ion collisions is directly related to the medium created therein. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at $\sqrt{s_{\scriptscriptstyle\text{NN}}}=5\, \mathrm{TeV}$ and lead-neon fixed-target collisions at $\sqrt{s_{\scriptscriptstyle\text{NN}}}=69\, \mathrm{GeV}$. The energy deposits in the elec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.01607v1-abstract-full').style.display = 'inline'; document.getElementById('2111.01607v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.01607v1-abstract-full" style="display: none;"> The centrality of heavy-ion collisions is directly related to the medium created therein. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at $\sqrt{s_{\scriptscriptstyle\text{NN}}}=5\, \mathrm{TeV}$ and lead-neon fixed-target collisions at $\sqrt{s_{\scriptscriptstyle\text{NN}}}=69\, \mathrm{GeV}$. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are the first performed in fixed-target collisions at the LHC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.01607v1-abstract-full').style.display = 'none'; document.getElementById('2111.01607v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/Publications/p/LHCb-DP-2021-002.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-LHCb-DP-2021-002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.09501">arXiv:2110.09501</a> <span> [<a href="https://arxiv.org/pdf/2110.09501">pdf</a>, <a href="https://arxiv.org/format/2110.09501">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.191802">10.1103/PhysRevLett.128.191802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Tests of lepton universality using $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+} \ell^+ \ell^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (987 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.09501v3-abstract-short" style="display: inline;"> Tests of lepton universality in $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+} \ell^+ \ell^-$ decays where $\ell$ is either an electron or a muon are presented. The differential branching fractions of $B^0\to K^0_S e^+ e^-$ and $B^+\to K^{*+} e^+ e^-$ decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.09501v3-abstract-full').style.display = 'inline'; document.getElementById('2110.09501v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.09501v3-abstract-full" style="display: none;"> Tests of lepton universality in $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+} \ell^+ \ell^-$ decays where $\ell$ is either an electron or a muon are presented. The differential branching fractions of $B^0\to K^0_S e^+ e^-$ and $B^+\to K^{*+} e^+ e^-$ decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of $9\, \mathrm{fb}^{-1}$. The results are consistent with the Standard Model and previous tests of lepton universality in related decay modes. The first observation of $B^0 \to K^0_S e^+ e^-$ and $B^+ \to K^{*+} e^+ e^-$ decays is reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.09501v3-abstract-full').style.display = 'none'; document.getElementById('2110.09501v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-038.html. v2 - Added two more leptoquark references, and fixed formatting bugs in arXiv title and abstract. v3 - Version of paper published in PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-038, CERN-EP-2021-208 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128 (2022) 191802 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.07293">arXiv:2110.07293</a> <span> [<a href="https://arxiv.org/pdf/2110.07293">pdf</a>, <a href="https://arxiv.org/format/2110.07293">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for massive long-lived particles decaying semileptonically at sqrt(s)=13 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (986 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.07293v3-abstract-short" style="display: inline;"> A search is performed for massive long-lived particles (LLP) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 GeV is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10 GeV up to about one half the Higgs-like boson mass. The second LLP pro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.07293v3-abstract-full').style.display = 'inline'; document.getElementById('2110.07293v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.07293v3-abstract-full" style="display: none;"> A search is performed for massive long-lived particles (LLP) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 GeV is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10 GeV up to about one half the Higgs-like boson mass. The second LLP production mode is directly from quark interactions, with LLP masses from 10 to 90 GeV. The LLP lifetimes considered range from 5 to 200 ps. This study uses LHCb data collected from proton-proton collisions at sqrt(s)=13 TeV, corresponding to an integrated luminosity of 5.4 1/fb. No evidence of these long-lived states has been observed, and upper limits on the production cross-section times branching ratio have been set for each model considered. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.07293v3-abstract-full').style.display = 'none'; document.getElementById('2110.07293v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-028.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-028, CERN-EP-2021-186 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.04497">arXiv:2110.04497</a> <span> [<a href="https://arxiv.org/pdf/2110.04497">pdf</a>, <a href="https://arxiv.org/format/2110.04497">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.162001">10.1103/PhysRevLett.128.162001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of two new excited ${\it螢}_b^0$ states decaying to ${\it螞}_b^0 K^-蟺^+$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (985 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.04497v2-abstract-short" style="display: inline;"> Two narrow resonant states are observed in the ${\it螞}_b^0 K^-蟺^+$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13$~\rm TeV$, collected by the LHCb experiment and corresponding to an integrated luminosity of $6~{\rm fb}^{-1}$. The minimal quark content of the ${\it螞}_b^0 K^-蟺^+$ system indicates that these are excited ${\it螢}_b^0$ baryons. The masses… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.04497v2-abstract-full').style.display = 'inline'; document.getElementById('2110.04497v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.04497v2-abstract-full" style="display: none;"> Two narrow resonant states are observed in the ${\it螞}_b^0 K^-蟺^+$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13$~\rm TeV$, collected by the LHCb experiment and corresponding to an integrated luminosity of $6~{\rm fb}^{-1}$. The minimal quark content of the ${\it螞}_b^0 K^-蟺^+$ system indicates that these are excited ${\it螢}_b^0$ baryons. The masses of the ${\it螢}_b(6327)^0$ and ${\it螢}_b(6333)^0$ states are $m({\it螢}_b(6327)^0) = 6327.28 ^{\,+\,0.23}_{\,-\,0.21} \pm 0.12 \pm 0.24~{\rm MeV}$ and $m({\it螢}_b(6333)^0) = 6332.69 ^{\,+\,0.17}_{\,-\,0.18} \pm 0.03 \pm 0.22~{\rm MeV}$, respectively, with a mass splitting of $螖m = 5.41 ^{\,+\,0.26}_{\,-\,0.27} \pm 0.12 ~{\rm MeV}$, where the uncertainties are statistical, systematic and due to the ${\it螞}_b^0$ mass measurement. The measured natural widths of these states are consistent with zero, with upper limits of $螕({\it螢}_b(6327)^0)<2.20~(2.56) ~{\rm MeV}$ and $螕({\it螢}_b(6333)^0)<1.60~(1.92) ~{\rm MeV}$ at a $90\%~(95\%)$ credibility level. The significance of the two-peak hypothesis is larger than nine (five) Gaussian standard deviations compared to the no-peak (one-peak) hypothesis. The masses, widths and resonant structure of the new states are in good agreement with the expectations for a doublet of 1$D$ ${\it螢}_b^0$ resonances. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.04497v2-abstract-full').style.display = 'none'; document.getElementById('2110.04497v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-025.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-025, CERN-EP-2021-188 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128, 162001 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.02350">arXiv:2110.02350</a> <span> [<a href="https://arxiv.org/pdf/2110.02350">pdf</a>, <a href="https://arxiv.org/format/2110.02350">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2021)141">10.1007/JHEP12(2021)141 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Simultaneous determination of CKM angle $纬$ and charm mixing parameters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.02350v2-abstract-short" style="display: inline;"> A combination of measurements sensitive to the $CP$ violation angle $纬$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscillations between $D^0$ and $\bar{D}^0$ mesons is performed. Results from the charm and beauty sectors, based on data collected with the LHCb detector at CERN's Large Hadron Collider, are combined for the first time. This me… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.02350v2-abstract-full').style.display = 'inline'; document.getElementById('2110.02350v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.02350v2-abstract-full" style="display: none;"> A combination of measurements sensitive to the $CP$ violation angle $纬$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscillations between $D^0$ and $\bar{D}^0$ mesons is performed. Results from the charm and beauty sectors, based on data collected with the LHCb detector at CERN's Large Hadron Collider, are combined for the first time. This method provides an improvement on the precision of the charm mixing parameter $y$ by a factor of two with respect to the current world average. The charm mixing parameters are determined to be $x = (0.400^{\,+0.052}_{\,-0.053})\%$ and $y = (0.630^{\,+0.033}_{\,-0.030})\%$. The angle $纬$ is found to be $纬= (65.4^{\,+3.8}_{\,-4.2})^\circ$ and is the most precise determination from a single experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.02350v2-abstract-full').style.display = 'none'; document.getElementById('2110.02350v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-033.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-033, CERN-EP-2021-183 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2021) 141 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.08084">arXiv:2109.08084</a> <span> [<a href="https://arxiv.org/pdf/2109.08084">pdf</a>, <a href="https://arxiv.org/format/2109.08084">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.082001">10.1103/PhysRevLett.128.082001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of $Z$ bosons produced in association with charm in the forward region </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.08084v2-abstract-short" style="display: inline;"> Events containing a $Z$ boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of $6 \, {\rm fb}^{-1}$ collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a $Z$ boson and a jet, the fraction of charm jets is determined in intervals of $Z$-boson rapidity in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.08084v2-abstract-full').style.display = 'inline'; document.getElementById('2109.08084v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.08084v2-abstract-full" style="display: none;"> Events containing a $Z$ boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of $6 \, {\rm fb}^{-1}$ collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a $Z$ boson and a jet, the fraction of charm jets is determined in intervals of $Z$-boson rapidity in the range $2.0 < y(Z) < 4.5$. A sizable enhancement is observed in the forward-most $y(Z)$ interval, which could be indicative of a valence-like intrinsic-charm component in the proton wave function. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.08084v2-abstract-full').style.display = 'none'; document.getElementById('2109.08084v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-029.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-029, CERN-EP-2021-176 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 128 (2022) 082001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.07360">arXiv:2109.07360</a> <span> [<a href="https://arxiv.org/pdf/2109.07360">pdf</a>, <a href="https://arxiv.org/format/2109.07360">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2022)131">10.1007/JHEP01(2022)131 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $蠂_{c1}(3872)$ production in proton-proton collisions at $\sqrt{s}=8$ and $13$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (987 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.07360v2-abstract-short" style="display: inline;"> The production cross-section of the $蠂_{c1}(3872)$ state relative to the $蠄(2S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of $\sqrt{s}=8$ and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb$^{-1}$, respectively. The two mesons are reconstructed in the $J/蠄蟺^{+}蟺^{-}$ final state. The ratios of the prompt a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07360v2-abstract-full').style.display = 'inline'; document.getElementById('2109.07360v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.07360v2-abstract-full" style="display: none;"> The production cross-section of the $蠂_{c1}(3872)$ state relative to the $蠄(2S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of $\sqrt{s}=8$ and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb$^{-1}$, respectively. The two mesons are reconstructed in the $J/蠄蟺^{+}蟺^{-}$ final state. The ratios of the prompt and nonprompt $蠂_{c1}(3872)$ to $蠄(2S)$ production cross-sections are measured as a function of transverse momentum, $p_{\rm T}$, and rapidity, $y$, in the kinematic range $4 < p_{\rm T} < 20$ GeV/$c$ and $2.0 < y < 4.5$. The prompt ratio is found to increase with $p_{\rm T}$ independently of $y$. The double-differential cross-section ratio of $蠂_{c1}(3872)$ relative to $蠄(2S)$ mesons between 13 and 8 TeV is also measured for the prompt component and observed to be consistent with unity, independent of $p_{\rm T}$ and centre-of-mass energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07360v2-abstract-full').style.display = 'none'; document.getElementById('2109.07360v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-026.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-026, CERN-EP-2021-182 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 01 (2022) 131 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.07292">arXiv:2109.07292</a> <span> [<a href="https://arxiv.org/pdf/2109.07292">pdf</a>, <a href="https://arxiv.org/format/2109.07292">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2021)107">10.1007/JHEP12(2021)107 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the doubly charmed baryon $\it螢_{cc}^{+}$ in the $\it螢_{c}^{+} 蟺^{-} 蟺^{+}$ final state </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (980 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.07292v2-abstract-short" style="display: inline;"> A search for the doubly charmed baryon $\it螢_{cc}^{+}$ is performed in the $\it螢_{c}^{+} 蟺^{-} 蟺^{+}$ invariant-mass spectrum, where the $\it螢_{c}^{+}$ baryon is reconstructed in the $p K^{-} 蟺^{+}$ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$, corresponding to a total integrated luminosity o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07292v2-abstract-full').style.display = 'inline'; document.getElementById('2109.07292v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.07292v2-abstract-full" style="display: none;"> A search for the doubly charmed baryon $\it螢_{cc}^{+}$ is performed in the $\it螢_{c}^{+} 蟺^{-} 蟺^{+}$ invariant-mass spectrum, where the $\it螢_{c}^{+}$ baryon is reconstructed in the $p K^{-} 蟺^{+}$ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$, corresponding to a total integrated luminosity of 5.4$\,\mathrm{fb}^{-1}$. No significant signal is observed in the invariant-mass range of 3.4$-$3.8$\mathrm{\,Ge\kern -0.1em V}/c^2$. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the $\it螢_{cc}^{++} \rightarrow (\it螢_{c}^{+} \rightarrow p K^{-} 蟺^{+}) 蟺^{+}$ decay for different $\it螢_{cc}^{+}$ mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25$\mathrm{\,Ge\kern -0.1em V}/c$. The results from this search are combined with a previously published search for the $\it螢_{cc}^{+} \rightarrow \it螞_{c}^{+} K^{-} 蟺^{+}$ decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620$\mathrm{\,Me\kern -0.1em V}/c^2$, including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5$-$3.7$\mathrm{\,Ge\kern -0.1em V}/c^2$ mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07292v2-abstract-full').style.display = 'none'; document.getElementById('2109.07292v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-019.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-019, CERN-EP-2021-155 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2021) 107 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.02621">arXiv:2109.02621</a> <span> [<a href="https://arxiv.org/pdf/2109.02621">pdf</a>, <a href="https://arxiv.org/format/2109.02621">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.112008">10.1103/PhysRevD.104.112008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the suppressed $螞_b^0\to D p K^-$ decay with $D\to K^+ 蟺^-$ and measurement of its $C\!P$ asymmetry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (987 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.02621v2-abstract-short" style="display: inline;"> A study of $螞_b^0$ baryon decays to the $DpK^-$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb$^{-1}$ collected with the LHCb detector. Two $螞_b^0$ decays are considered, $螞_b^0\to DpK^-$ with $D\to K^-蟺^+$ and $D\to K^+蟺^-$, where $D$ represents a superposition of $D^0$ and $\overline{D}^0$ states. The latter process is ex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.02621v2-abstract-full').style.display = 'inline'; document.getElementById('2109.02621v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.02621v2-abstract-full" style="display: none;"> A study of $螞_b^0$ baryon decays to the $DpK^-$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb$^{-1}$ collected with the LHCb detector. Two $螞_b^0$ decays are considered, $螞_b^0\to DpK^-$ with $D\to K^-蟺^+$ and $D\to K^+蟺^-$, where $D$ represents a superposition of $D^0$ and $\overline{D}^0$ states. The latter process is expected to be suppressed relative to the former, and is observed for the first time. The ratio of branching fractions of the two decays is measured, and the $C\!P$ asymmetry of the suppressed mode, which is sensitive to the CKM angle $纬$, is also reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.02621v2-abstract-full').style.display = 'none'; document.getElementById('2109.02621v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-027.html (LHCb public pages). v2 matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-027, CERN-EP-2021-179 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev. D104 (2021) 112008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.01334">arXiv:2109.01334</a> <span> [<a href="https://arxiv.org/pdf/2109.01334">pdf</a>, <a href="https://arxiv.org/format/2109.01334">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.scib.2021.11.022">10.1016/j.scib.2021.11.022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the lifetimes of promptly produced $惟^{0}_{c}$ and $螢^{0}_{c}$ baryons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (979 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.01334v2-abstract-short" style="display: inline;"> A measurement of the lifetimes of the $惟^{0}_{c}$ and $螢^{0}_{c}$ baryons is reported using proton-proton collision data at a centre-of-mass energy of $13\text{ TeV}$, corresponding to an integrated luminosity of $5.4\text{ fb}^{-1}$ collected by the LHCb experiment. The $惟^{0}_{c}$ and $螢^{0}_{c}$ baryons are produced directly from proton interactions and reconstructed in the $pK^{-}K^{-}蟺^{+}$ f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01334v2-abstract-full').style.display = 'inline'; document.getElementById('2109.01334v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01334v2-abstract-full" style="display: none;"> A measurement of the lifetimes of the $惟^{0}_{c}$ and $螢^{0}_{c}$ baryons is reported using proton-proton collision data at a centre-of-mass energy of $13\text{ TeV}$, corresponding to an integrated luminosity of $5.4\text{ fb}^{-1}$ collected by the LHCb experiment. The $惟^{0}_{c}$ and $螢^{0}_{c}$ baryons are produced directly from proton interactions and reconstructed in the $pK^{-}K^{-}蟺^{+}$ final state. The $惟^{0}_{c}$ lifetime is measured to be $276.5\pm13.4\pm4.4\pm0.7\text{ fs}$, and the $螢^{0}_{c}$ lifetime is measured to be $148.0\pm2.3\pm2.2\pm0.2\text{ fs}$, where the first uncertainty is statistical, the second systematic, and the third due to the uncertainty on the $D^{0}$ lifetime. These results confirm previous LHCb measurements based on semileptonic beauty-hadron decays, which disagree with earlier results of a four times shorter $惟^{0}_{c}$ lifetime, and provide the single most precise measurement of the $惟^{0}_{c}$ lifetime. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01334v2-abstract-full').style.display = 'none'; document.getElementById('2109.01334v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-021.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-021, CERN-EP-2021-167 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Science Bulletin 2022, 67(5): 479-487 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.01113">arXiv:2109.01113</a> <span> [<a href="https://arxiv.org/pdf/2109.01113">pdf</a>, <a href="https://arxiv.org/format/2109.01113">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2022)036">10.1007/JHEP01(2022)036 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the W boson mass </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.01113v2-abstract-short" style="display: inline;"> The $W$ boson mass is measured using proton-proton collision data at $\sqrt{s}=13$ TeV corresponding to an integrated luminosity of 1.7 fb$^{-1}$ recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon $q/p_T$ distribution of a sample of $W \to 渭谓$ decays and the $蠁^*$ distribution of a sample of $Z\to渭渭$ decays the $W$ boson mass is determined to be \begin{equation*} m_{W… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01113v2-abstract-full').style.display = 'inline'; document.getElementById('2109.01113v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01113v2-abstract-full" style="display: none;"> The $W$ boson mass is measured using proton-proton collision data at $\sqrt{s}=13$ TeV corresponding to an integrated luminosity of 1.7 fb$^{-1}$ recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon $q/p_T$ distribution of a sample of $W \to 渭谓$ decays and the $蠁^*$ distribution of a sample of $Z\to渭渭$ decays the $W$ boson mass is determined to be \begin{equation*} m_{W} = 80354 \pm 23_{\rm stat} \pm 10_{\rm exp} \pm 17_{\rm theory} \pm 9_{\rm PDF}~\mathrm{MeV}, \end{equation*} where uncertainties correspond to contributions from statistical, experimental systematic, theoretical and parton distribution function sources. This is an average of results based on three recent global parton distribution function sets. The measurement agrees well with the prediction of the global electroweak fit and with previous measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01113v2-abstract-full').style.display = 'none'; document.getElementById('2109.01113v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-024.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-024, CERN-EP-2021-170 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 01 (2022) 036 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.01056">arXiv:2109.01056</a> <span> [<a href="https://arxiv.org/pdf/2109.01056">pdf</a>, <a href="https://arxiv.org/format/2109.01056">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41467-022-30206-w">10.1038/s41467-022-30206-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the doubly charmed tetraquark $T_{cc}^+$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.01056v4-abstract-short" style="display: inline;"> An exotic narrow state in the $D^0D^0蟺^+$ mass spectrum just below the $D^{*+}D^0$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1}$ acquired with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The state is consistent with the ground isoscalar $T^+_{cc}$ tetraquark with a quark content of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01056v4-abstract-full').style.display = 'inline'; document.getElementById('2109.01056v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01056v4-abstract-full" style="display: none;"> An exotic narrow state in the $D^0D^0蟺^+$ mass spectrum just below the $D^{*+}D^0$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1}$ acquired with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The state is consistent with the ground isoscalar $T^+_{cc}$ tetraquark with a quark content of $cc\bar{u}\bar{d}$ and spin-parity quantum numbers $\mathrm{J}^{\mathrm{P}}=1^+$. Study of the $DD$ mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell $D^{*+}$ mesons is confirmed by the $D^0蟺^+$ mass distribution. The mass of the resonance and its coupling to the $D^{*}D$ system are analysed. Resonance parameters including the pole position, scattering length, effective range and compositeness are measured to reveal important information about the nature of the $T^+_{cc}$ state. In addition, an unexpected dependence of the production rate on track multiplicity is observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01056v4-abstract-full').style.display = 'none'; document.getElementById('2109.01056v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-032.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2021-169, LHCb-PAPER-2021-032 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Communicatitions, 13, 3351 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.01038">arXiv:2109.01038</a> <span> [<a href="https://arxiv.org/pdf/2109.01038">pdf</a>, <a href="https://arxiv.org/format/2109.01038">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41567-022-01614-y">10.1038/s41567-022-01614-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of an exotic narrow doubly charmed tetraquark </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Gallego%2C+F+J+A">F. J. Abudinen Gallego</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a> , et al. (984 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.01038v4-abstract-short" style="display: inline;"> Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. The observation of a new type of hadronic state, a doubly charmed tetraquark containing two charm quarks, an anti-$u$ and an anti-$d$ quark, is reported using data collected by the LHCb experiment at the Large Hadron Collider. This exotic state with a mass of about 3875 MeV… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01038v4-abstract-full').style.display = 'inline'; document.getElementById('2109.01038v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01038v4-abstract-full" style="display: none;"> Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. The observation of a new type of hadronic state, a doubly charmed tetraquark containing two charm quarks, an anti-$u$ and an anti-$d$ quark, is reported using data collected by the LHCb experiment at the Large Hadron Collider. This exotic state with a mass of about 3875 MeV$/c^2$ manifests itself as a narrow peak in the mass spectrum of $D^0D^0蟺^+$ mesons just below the $D^{*+}D^0$ mass threshold. The near threshold mass together with a strikingly narrow width reveals the resonance nature of the state. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01038v4-abstract-full').style.display = 'none'; document.getElementById('2109.01038v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 1 figure; All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-031.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2021-165, LHCb-PAPER-2021-031 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Physics (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.00488">arXiv:2109.00488</a> <span> [<a href="https://arxiv.org/pdf/2109.00488">pdf</a>, <a href="https://arxiv.org/format/2109.00488">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2021)117">10.1007/JHEP12(2021)117 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Updated search for $B_c^+$ decays to two charm mesons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (985 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.00488v2-abstract-short" style="display: inline;"> A data set corresponding to an integrated luminosity of $9 \text{fb}^{-1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D^{(*)+}_{(s)} \overset{\scriptstyle (-)}{D}{}^{(*)0}$ decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00488v2-abstract-full').style.display = 'inline'; document.getElementById('2109.00488v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.00488v2-abstract-full" style="display: none;"> A data set corresponding to an integrated luminosity of $9 \text{fb}^{-1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D^{(*)+}_{(s)} \overset{\scriptstyle (-)}{D}{}^{(*)0}$ decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper limits for the branching fractions, normalised to $B^+$ decays to final states with similar topologies, are obtained for fourteen $B_c^+$ decay modes. For the decay $B_c^+ \to D_s^+ {\overline{D}}^0$, an excess with a significance of 3.4 standard deviations is found. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00488v2-abstract-full').style.display = 'none'; document.getElementById('2109.00488v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-023.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-023, CERN-EP-2021-154 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2021) 117 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.00220">arXiv:2109.00220</a> <span> [<a href="https://arxiv.org/pdf/2109.00220">pdf</a>, <a href="https://arxiv.org/format/2109.00220">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP11(2021)181">10.1007/JHEP11(2021)181 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $J/蠄$ production cross-sections in $pp$ collisions at $\sqrt{s}=5$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (978 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.00220v2-abstract-short" style="display: inline;"> The production cross-sections of $J/蠄$ mesons in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=5$ TeV are measured using a data sample corresponding to an integrated luminosity of $9.13\pm0.18~\text{pb}^{-1}$, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, $p_{\text{T}}$, and rapidity, $y$, and separately fo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00220v2-abstract-full').style.display = 'inline'; document.getElementById('2109.00220v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.00220v2-abstract-full" style="display: none;"> The production cross-sections of $J/蠄$ mesons in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=5$ TeV are measured using a data sample corresponding to an integrated luminosity of $9.13\pm0.18~\text{pb}^{-1}$, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, $p_{\text{T}}$, and rapidity, $y$, and separately for $J/蠄$ mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised $J/蠄$ mesons, the production cross-sections integrated over the kinematic range $0<p_{\text{T}}<20~\text{GeV}/c$ and $2.0<y<4.5$ are $8.154\pm0.010\pm0.283~渭\text{b}$ for prompt $J/蠄$ mesons and $0.820\pm0.003\pm0.034~渭\text{b}$ for nonprompt $J/蠄$ mesons, where the first uncertainties are statistical and the second systematic. These cross-sections are compared with those at $\sqrt{s}=8$ TeV and $13$ TeV, and are used to update the measurement of the nuclear modification factor in proton-lead collisions for $J/蠄$ mesons at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\text{NN}}}=5$ TeV. The results are compared with theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00220v2-abstract-full').style.display = 'none'; document.getElementById('2109.00220v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-020.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-020,CERN-EP-2021-156 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 11 (2021) 181 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.13115">arXiv:2108.13115</a> <span> [<a href="https://arxiv.org/pdf/2108.13115">pdf</a>, <a href="https://arxiv.org/format/2108.13115">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.142004">10.1103/PhysRevLett.128.142004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the nuclear modification factor and prompt charged particle production in $p\mathrm{Pb}$ and $pp$ collisions at $\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a> , et al. (949 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.13115v2-abstract-short" style="display: inline;"> The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy ${\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}}$ is studied at LHCb as a function of pseudorapidity ($畏$) and transverse momentum ($p_{\mathrm{T}}$) with respect to the proton beam direction. The nuclear modification factor for charged partic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13115v2-abstract-full').style.display = 'inline'; document.getElementById('2108.13115v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.13115v2-abstract-full" style="display: none;"> The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy ${\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}}$ is studied at LHCb as a function of pseudorapidity ($畏$) and transverse momentum ($p_{\mathrm{T}}$) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of $畏$ between ${-4.8<畏<-2.5}$ (backward region) and ${2.0<畏<4.8}$ (forward region), and $p_{\mathrm{T}}$ between ${0.2<p_{\mathrm{T}}<8.0\,\mathrm{GeV}/c}$. The results show a suppression of charged particle production in proton-lead collisions relative to proton-proton collisions in the forward region and an enhancement in the backward region for $p_{\mathrm{T}}$ larger than $1.5\,\mathrm{GeV}/c$. This measurement constrains nuclear PDFs and saturation models at previously unexplored values of the parton momentum fraction down to $10^{-6}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13115v2-abstract-full').style.display = 'none'; document.getElementById('2108.13115v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-015.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-015, CERN-EP-2021-130 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett. 128 (2022), 142004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.09284">arXiv:2108.09284</a> <span> [<a href="https://arxiv.org/pdf/2108.09284">pdf</a>, <a href="https://arxiv.org/format/2108.09284">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.041801">10.1103/PhysRevLett.128.041801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of neutral $B$-meson decays into two muons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (940 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.09284v3-abstract-short" style="display: inline;"> Branching fraction and effective lifetime measurements of the rare decay $B^0_s\to渭^+渭^-$ and searches for the decays $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ are reported using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of $7$ TeV, $8$ TeV and $13$ TeV, corresponding to a luminosity of $9$ fb$^{-1}$. The branching fraction… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09284v3-abstract-full').style.display = 'inline'; document.getElementById('2108.09284v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.09284v3-abstract-full" style="display: none;"> Branching fraction and effective lifetime measurements of the rare decay $B^0_s\to渭^+渭^-$ and searches for the decays $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ are reported using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of $7$ TeV, $8$ TeV and $13$ TeV, corresponding to a luminosity of $9$ fb$^{-1}$. The branching fraction ${\mathcal{B}}(B^0_s\to渭^+渭^-)=\left(3.09^{+0.46+0.15}_{-0.43-0.11}\right)\times 10^{-9}$ and the effective lifetime $蟿(B^0_s\to渭^+渭^-)=(2.07\pm 0.29\pm 0.03)$ are measured, where the first uncertainty is statistical and the second systematic. No significant signal for $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ decays is found and upper limits $\mathcal{B}(B^0\to渭^+渭^-)<2.6\times 10^{-10}$ and $\mathcal{B}(B^0_s\to渭^+渭^-纬)<2.0\times 10^{-9}$ at the 95% CL are determined, where the latter is limited to the range $m_{渭渭} > 4.9$ GeV$/c^2$. The results are in agreement with the Standard Model expectations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09284v3-abstract-full').style.display = 'none'; document.getElementById('2108.09284v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-007.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-CERN-EP-2021-132, LHCb-PAPER-2021-007 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128 (2022) 041801 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.09283">arXiv:2108.09283</a> <span> [<a href="https://arxiv.org/pdf/2108.09283">pdf</a>, <a href="https://arxiv.org/format/2108.09283">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.012010">10.1103/PhysRevD.105.012010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $B^0_s\to渭^+渭^-$ decay properties and search for the $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (940 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.09283v3-abstract-short" style="display: inline;"> An improved measurement of the decay $B^0_s\to渭^+渭^-$ and searches for the decays $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ are performed at the LHCb experiment using data collected in proton-proton collisions at $\sqrt{s} = 7,~8$ and $13$ TeV, corresponding to integrated luminosities of 1, 2 and 6 fb$^{-1}$, respectively. The $B^0_s\to渭^+渭^-$ branching fraction and effective lifetime are measured to b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09283v3-abstract-full').style.display = 'inline'; document.getElementById('2108.09283v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.09283v3-abstract-full" style="display: none;"> An improved measurement of the decay $B^0_s\to渭^+渭^-$ and searches for the decays $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ are performed at the LHCb experiment using data collected in proton-proton collisions at $\sqrt{s} = 7,~8$ and $13$ TeV, corresponding to integrated luminosities of 1, 2 and 6 fb$^{-1}$, respectively. The $B^0_s\to渭^+渭^-$ branching fraction and effective lifetime are measured to be ${\mathcal{B}}(B^0_s\to渭^+渭^-)=\left(3.09^{+0.46+0.15}_{-0.43-0.11}\right)\times 10^{-9}$ and $蟿(B^0_s\to渭^+渭^-)=(2.07\pm 0.29\pm 0.03)$ ps, respectively, where the uncertainties include both statistical and systematic contributions. No significant signal for $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-纬$ decays is found and the upper limits $\mathcal{B}(B^0\to渭^+渭^-)<2.6\times 10^{-10}$ and $\mathcal{B}(B^0_s\to渭^+渭^-纬)<2.0\times 10^{-9}$ at 95% confidence level are determined, where the latter is limited to the range $m_{渭渭} > 4.9$ GeV$/c^2$. Additionally, the ratio between the $B^0\to渭^+渭^-$ and $B^0_s\to渭^+渭^-$ branching fractions is measured to be $\mathcal{R}_{渭^+渭^-}<0.095$ at 95% confidence level. The results are in agreement with the Standard Model predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09283v3-abstract-full').style.display = 'none'; document.getElementById('2108.09283v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-008.html. V3 contains the version published in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2021-133, LHCb-PAPER-2021-008 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D105 (2022) 012010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.07678">arXiv:2108.07678</a> <span> [<a href="https://arxiv.org/pdf/2108.07678">pdf</a>, <a href="https://arxiv.org/format/2108.07678">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2022)069">10.1007/JHEP01(2022)069 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the radiative $螢_b^-\to螢^-纬$ decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a> , et al. (974 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.07678v2-abstract-short" style="display: inline;"> The first search for the rare radiative decay $螢_b^- \to 螢^- 纬$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. The $螢_b- \to 螢^- J/蠄$ channel is used as normalization. No $螢_b^- \to 螢^- 纬$ signal is found and an upper limit of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.07678v2-abstract-full').style.display = 'inline'; document.getElementById('2108.07678v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.07678v2-abstract-full" style="display: none;"> The first search for the rare radiative decay $螢_b^- \to 螢^- 纬$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. The $螢_b- \to 螢^- J/蠄$ channel is used as normalization. No $螢_b^- \to 螢^- 纬$ signal is found and an upper limit of $\mathcal{B}(螢_b^- \to 螢^- 纬) < 1.3 \times 10^{-4}$ at 95% confidence level is obtained. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.07678v2-abstract-full').style.display = 'none'; document.getElementById('2108.07678v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-017.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-017, CERN-EP-2021-128 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP01(2022)069 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.04720">arXiv:2108.04720</a> <span> [<a href="https://arxiv.org/pdf/2108.04720">pdf</a>, <a href="https://arxiv.org/format/2108.04720">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.062001">10.1103/PhysRevLett.128.062001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evidence for a new structure in the $J/蠄p$ and $J/蠄\bar{p}$ systems in $B_s^0 \to J/蠄p \bar{p}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a> , et al. (975 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.04720v2-abstract-short" style="display: inline;"> An amplitude analysis of flavour-untagged $B_s^0 \to J/蠄p \bar{p}$ decays is performed using a sample of $797\pm31$ decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 $\text{fb}^{-1}$. Evidence for a new structure in the $J/蠄p$ and $J/蠄\bar{p}$ systems with a mass of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04720v2-abstract-full').style.display = 'inline'; document.getElementById('2108.04720v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.04720v2-abstract-full" style="display: none;"> An amplitude analysis of flavour-untagged $B_s^0 \to J/蠄p \bar{p}$ decays is performed using a sample of $797\pm31$ decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 $\text{fb}^{-1}$. Evidence for a new structure in the $J/蠄p$ and $J/蠄\bar{p}$ systems with a mass of $4337 \ ^{+7}_{-4} \ ^{+2}_{-2}~\text{MeV}$ and a width of $29 \ ^{+26}_{-12} \ ^{+14}_{-14}~\text{MeV}$ is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7 $蟽$, depending on the assigned $J^P$ hypothesis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04720v2-abstract-full').style.display = 'none'; document.getElementById('2108.04720v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-018.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-018, CERN-EP-2021-150 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128, 062001 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.02681">arXiv:2108.02681</a> <span> [<a href="https://arxiv.org/pdf/2108.02681">pdf</a>, <a href="https://arxiv.org/format/2108.02681">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.105.L032201">10.1103/PhysRevC.105.L032201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $J/蠄$ photo-production in Pb-Pb peripheral collisions at $\sqrt{s_{\rm NN}}$ = 5 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (929 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.02681v2-abstract-short" style="display: inline;"> The photo-production of $J/蠄$ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb experiment at a centre-of-mass energy per nucleon pair of 5 TeV, corresponding to an integrated luminosity of 210 $\rm{渭b}^{-1}$. The $J/蠄$ candidates are reconstructed through the prompt decay into two muons of opposite charge in the rapidity region of $2.0<y<4.5$. T… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02681v2-abstract-full').style.display = 'inline'; document.getElementById('2108.02681v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.02681v2-abstract-full" style="display: none;"> The photo-production of $J/蠄$ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb experiment at a centre-of-mass energy per nucleon pair of 5 TeV, corresponding to an integrated luminosity of 210 $\rm{渭b}^{-1}$. The $J/蠄$ candidates are reconstructed through the prompt decay into two muons of opposite charge in the rapidity region of $2.0<y<4.5$. The results significantly improve previous measurements and are compared to the latest theoretical prediction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02681v2-abstract-full').style.display = 'none'; document.getElementById('2108.02681v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-043.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2020-043, CERN-EP-2021-122 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C. 105 (2022) L032201 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.13428">arXiv:2107.13428</a> <span> [<a href="https://arxiv.org/pdf/2107.13428">pdf</a>, <a href="https://arxiv.org/format/2107.13428">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP11(2021)043">10.1007/JHEP11(2021)043 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Angular analysis of the rare decay $B_s^0\to蠁渭^+渭^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+Collaboration"> LHCb Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a> , et al. (981 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.13428v2-abstract-short" style="display: inline;"> An angular analysis of the rare decay $B^0_s\rightarrow蠁渭^+渭^-$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13~\rm{TeV}$, corresponding to an integrated luminosity of $8.4~\rm{fb}^{-1}$. The observables describing the angular distributions of the decay $B^0_s\rightarrow蠁渭^+渭^-$ are determined in regions of $q^2$, the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.13428v2-abstract-full').style.display = 'inline'; document.getElementById('2107.13428v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.13428v2-abstract-full" style="display: none;"> An angular analysis of the rare decay $B^0_s\rightarrow蠁渭^+渭^-$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13~\rm{TeV}$, corresponding to an integrated luminosity of $8.4~\rm{fb}^{-1}$. The observables describing the angular distributions of the decay $B^0_s\rightarrow蠁渭^+渭^-$ are determined in regions of $q^2$, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.13428v2-abstract-full').style.display = 'none'; document.getElementById('2107.13428v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-022.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-022, CERN-EP-2021-138 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 11 (2021) 043 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.10090">arXiv:2107.10090</a> <span> [<a href="https://arxiv.org/pdf/2107.10090">pdf</a>, <a href="https://arxiv.org/format/2107.10090">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2022)166">10.1007/JHEP01(2022)166 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of prompt charged-particle production in pp collisions at a centre-of-mass energy of 13 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Alasfar%2C+L">L. Alasfar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a> , et al. (944 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.10090v3-abstract-short" style="display: inline;"> The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb experiment at a centre-of-mass energy of ${\sqrt{s} = 13\,\mathrm{TeV}}$. The data sample, collected with an unbiased trigger, corresponds to an integrated luminosity of ${5.4\,\mathrm{nb}^{-1}}$. The differential cross-secti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.10090v3-abstract-full').style.display = 'inline'; document.getElementById('2107.10090v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.10090v3-abstract-full" style="display: none;"> The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb experiment at a centre-of-mass energy of ${\sqrt{s} = 13\,\mathrm{TeV}}$. The data sample, collected with an unbiased trigger, corresponds to an integrated luminosity of ${5.4\,\mathrm{nb}^{-1}}$. The differential cross-section is measured as a function of transverse momentum and pseudorapidity in the ranges ${p_\mathrm{T} \in [0.08, 10)\,\mathrm{GeV}\,c^{-1}}$ and ${畏\in [2.0, 4.8)}$ and is determined separately for positively and negatively charged particles. The results are compared with predictions from various hadronic-interaction models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.10090v3-abstract-full').style.display = 'none'; document.getElementById('2107.10090v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-010.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-010, CERN-EP-2021-110 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> LHCb, JHEP 01 (2022) 166 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.09593">arXiv:2107.09593</a> <span> [<a href="https://arxiv.org/pdf/2107.09593">pdf</a>, <a href="https://arxiv.org/format/2107.09593">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP10(2021)060">10.1007/JHEP10(2021)060 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a $螞_b^0-\overline螞_b^0$ production asymmetry in proton-proton collisions at $\sqrt{s} = 7 \textrm{ and } 8\,\textrm{TeV}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a> , et al. (961 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.09593v2-abstract-short" style="display: inline;"> This article presents differential measurements of the asymmetry between $螞_b^0$ and $\overline螞_b^0$ baryon production rates in proton-proton collisions at centre-of-mass energies of $\sqrt{s}=7$ and $8\,\textrm{TeV}$ collected with the LHCb experiment, corresponding to an integrated luminosity of $3\,\textrm{fb}^{-1}$. The $螞_b^0$ baryons are reconstructed through the inclusive semileptonic deca… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.09593v2-abstract-full').style.display = 'inline'; document.getElementById('2107.09593v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.09593v2-abstract-full" style="display: none;"> This article presents differential measurements of the asymmetry between $螞_b^0$ and $\overline螞_b^0$ baryon production rates in proton-proton collisions at centre-of-mass energies of $\sqrt{s}=7$ and $8\,\textrm{TeV}$ collected with the LHCb experiment, corresponding to an integrated luminosity of $3\,\textrm{fb}^{-1}$. The $螞_b^0$ baryons are reconstructed through the inclusive semileptonic decay $螞_b^0\rightarrow螞_c^+渭^-\overline谓_渭X$. The production asymmetry is measured both in intervals of rapidity in the range $2.15<y<4.10$ and transverse momentum in $2<p_T<27\,\textrm{GeV}/c$. The results are found to be incompatible with symmetric production with a significance of 5.8 standard deviations for both $\sqrt{s}=7$ and $8\,\textrm{TeV}$ data, assuming no $C\!P$ violation in the decay. There is evidence for a trend as a function of rapidity with a significance of 4 standard deviations. Comparisons to predictions from hadronisation models in PYTHIA and heavy-quark recombination are provided. This result constitutes the first observation of a particle-antiparticle asymmetry in $b$-hadron production at LHC energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.09593v2-abstract-full').style.display = 'none'; document.getElementById('2107.09593v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-016.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-016, CERN-EP-2021-121 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 10 (2021) 060 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.03419">arXiv:2107.03419</a> <span> [<a href="https://arxiv.org/pdf/2107.03419">pdf</a>, <a href="https://arxiv.org/format/2107.03419">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.L091102">10.1103/PhysRevD.104.L091102 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of excited $惟_c^0$ baryons in $惟_b^- \to 螢_c^+ K^-蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (946 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.03419v2-abstract-short" style="display: inline;"> The first observation of the $惟_b^- \to 螢_c^+ K^- 蟺^-$ decay is reported using $pp$ collision data at centre-of-mass energies of 7, 8 and 13\,$\mathrm{TeV}$ collected by the LHCb experiment, corresponding to an integrated luminosity of 9\,$\mathrm{fb}^{-1}$. Four excited $惟_c^0$ baryons are observed in the $螢_c^+ K^-$ mass projection of the $惟_b^- \to 螢_c^+ K^- 蟺^-$ decays with the significance of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03419v2-abstract-full').style.display = 'inline'; document.getElementById('2107.03419v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.03419v2-abstract-full" style="display: none;"> The first observation of the $惟_b^- \to 螢_c^+ K^- 蟺^-$ decay is reported using $pp$ collision data at centre-of-mass energies of 7, 8 and 13\,$\mathrm{TeV}$ collected by the LHCb experiment, corresponding to an integrated luminosity of 9\,$\mathrm{fb}^{-1}$. Four excited $惟_c^0$ baryons are observed in the $螢_c^+ K^-$ mass projection of the $惟_b^- \to 螢_c^+ K^- 蟺^-$ decays with the significance of each exceeding five standard deviations. They coincide with the states previously observed in prompt \proton\proton and $e^+e^-$ production. Relative production rates, masses and natural widths of the states are measured, and a test of spin hypotheses is performed. Moreover, the branching ratio of $惟_b^- \to 螢_c^+ K^- 蟺^-$ is measured relative to the $惟_b^- \to 惟_c^0 蟺^-$ decay mode and a precise measurement of the $惟_b^-$ mass of \mbox{$6044.3 \pm 1.2 \pm 1.1^{\,+0.19}_{\,-0.22}\,\mathrm{MeV}$} is obtained. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03419v2-abstract-full').style.display = 'none'; document.getElementById('2107.03419v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-012.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2021-109, LHCb-PAPER-2021-012 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D 104 (2021) 9, L091102 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.03223">arXiv:2107.03223</a> <span> [<a href="https://arxiv.org/pdf/2107.03223">pdf</a>, <a href="https://arxiv.org/format/2107.03223">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2022)117">10.1007/JHEP07(2022)117 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of coherent $J/蠄$ production in lead-lead collisions at $\sqrt{s_{NN}} = 5 TeV$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Artamonov%2C+A">A. Artamonov</a> , et al. (933 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.03223v2-abstract-short" style="display: inline;"> Coherent production of $J/蠄$ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about $10 渭b^{-1}$. The $J/蠄$ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. The cross-section withi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03223v2-abstract-full').style.display = 'inline'; document.getElementById('2107.03223v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.03223v2-abstract-full" style="display: none;"> Coherent production of $J/蠄$ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about $10 渭b^{-1}$. The $J/蠄$ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. The cross-section within the rapidity range of $2.0 < y < 4.5$ is measured to be $4.45\pm0.24\pm0.18\pm0.58$ mb, where the first uncertainty is statistical, the second systematic and the third originates from the luminosity determination. The cross-section is also measured in $J/蠄$ rapidity intervals. The results are compared to predictions from phenomenological models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03223v2-abstract-full').style.display = 'none'; document.getElementById('2107.03223v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-013.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-CERN-EP-2021-108, LHCb-PAPER-2021-013 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 07 (2022) 117 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.03744">arXiv:2106.03744</a> <span> [<a href="https://arxiv.org/pdf/2106.03744">pdf</a>, <a href="https://arxiv.org/format/2106.03744">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.127.111801">10.1103/PhysRevLett.127.111801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.131.079901">10.1103/PhysRevLett.131.079901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the mass difference between neutral charm-meson eigenstates </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (945 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2106.03744v3-abstract-short" style="display: inline;"> A measurement of mixing and $C\!P$ violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4$\textrm{fb}^{-1}$. A total of $30.6$ million $D^{0}\rightarrow K^{0}_{\mathrm{S}}蟺^{+}蟺^{-}$ decays are analyzed using a method optimized for the measurement of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.03744v3-abstract-full').style.display = 'inline'; document.getElementById('2106.03744v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.03744v3-abstract-full" style="display: none;"> A measurement of mixing and $C\!P$ violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4$\textrm{fb}^{-1}$. A total of $30.6$ million $D^{0}\rightarrow K^{0}_{\mathrm{S}}蟺^{+}蟺^{-}$ decays are analyzed using a method optimized for the measurement of the mass difference between neutral charm-meson eigenstates. Allowing for $C\!P$ violation in mixing and in the interference between mixing and decay, the mass and decay-width differences are measured to be $x_{C\!P} = \left[3.97\pm0.46\textrm{(stat)}\pm 0.29\textrm{(syst)}\right]\times10^{-3}$ and $y_{C\!P} = \left[4.59\pm1.20\textrm{(stat)}\pm0.85\textrm{(syst)}\right]\times10^{-3}$, respectively. The $C\!P$-violating parameters are measured as $螖x = \left[-0.27\pm0.18\textrm{(stat)}\pm0.01\textrm{(syst)}\right]\times10^{-3}$ and $螖y = \left[0.20\pm0.36\textrm{(stat)}\pm0.13\textrm{(syst)}\right]\times10^{-3}$. This is the first observation of a nonzero mass difference in the $D^0$ meson system, with a significance exceeding seven standard deviations. The data are consistent with $C\!P$ symmetry, and improve existing constraints on the associated parameters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.03744v3-abstract-full').style.display = 'none'; document.getElementById('2106.03744v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-009.html (LHCb public pages). Updated to correct sign of reported value of phi</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-009, CERN-EP-2021-099 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 127, 111801 (2021); erratum: Phys. Rev. Lett. 131, 079901 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.14738">arXiv:2105.14738</a> <span> [<a href="https://arxiv.org/pdf/2105.14738">pdf</a>, <a href="https://arxiv.org/format/2105.14738">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09711-7">10.1140/epjc/s10052-021-09711-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of the $CP$-violating phase in $B^0_s\to J/蠄(\to e^+e^-)蠁$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (940 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.14738v3-abstract-short" style="display: inline;"> A flavour-tagged time-dependent angular analysis of $B^0_s\to J/蠄蠁$ decays is presented where the $J/蠄$ meson is reconstructed through its decay to an $e^+e^-$ pair. The analysis uses a sample of $pp$ collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. The $CP$-violating phase and lifetime parameters… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14738v3-abstract-full').style.display = 'inline'; document.getElementById('2105.14738v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.14738v3-abstract-full" style="display: none;"> A flavour-tagged time-dependent angular analysis of $B^0_s\to J/蠄蠁$ decays is presented where the $J/蠄$ meson is reconstructed through its decay to an $e^+e^-$ pair. The analysis uses a sample of $pp$ collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. The $CP$-violating phase and lifetime parameters of the $B^0_s$ system are measured to be $蠁_s=0.00\pm0.28\pm0.07$ rad, $螖螕_s=0.115\pm0.045\pm0.011$ ps$^{-1}$ and $螕_s=0.608\pm0.018\pm0.012$ ps$^{-1}$ where the first uncertainty is statistical and the second systematic. This is the first time that $CP$-violating parameters are measured in the $B^0_s\to J/蠄蠁$ decay with an $e^+e^-$ pair in the final state. The results are consistent with previous measurements in other channels and with the Standard Model predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14738v3-abstract-full').style.display = 'none'; document.getElementById('2105.14738v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-042.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2020-042, CERN-EP-2021-064 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2021) 81: 1026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.14007">arXiv:2105.14007</a> <span> [<a href="https://arxiv.org/pdf/2105.14007">pdf</a>, <a href="https://arxiv.org/format/2105.14007">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.127.151801">10.1103/PhysRevLett.127.151801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Branching fraction measurements of the rare $B^0_s\rightarrow蠁渭^+渭^-$ and $B^0_s\rightarrow f_2^\prime(1525)渭^+渭^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (946 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.14007v2-abstract-short" style="display: inline;"> The branching fraction of the rare $B^0_s\rightarrow蠁渭^+渭^-$ decay is measured using data collected by the LHCb experiment at center-of-mass energies of $7$, $8$ and $13\,\rm{TeV}$, corresponding to integrated luminosities of $1$, $2$ and $6\,{\rm fb}^{-1}$, respectively. The branching fraction is reported in intervals of $q^2$, the square of the dimuon invariant mass. In the $q^2$ region between… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14007v2-abstract-full').style.display = 'inline'; document.getElementById('2105.14007v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.14007v2-abstract-full" style="display: none;"> The branching fraction of the rare $B^0_s\rightarrow蠁渭^+渭^-$ decay is measured using data collected by the LHCb experiment at center-of-mass energies of $7$, $8$ and $13\,\rm{TeV}$, corresponding to integrated luminosities of $1$, $2$ and $6\,{\rm fb}^{-1}$, respectively. The branching fraction is reported in intervals of $q^2$, the square of the dimuon invariant mass. In the $q^2$ region between $1.1$ and $6.0\,{\rm Ge\kern -0.1em V}^2\!/c^4$, the measurement is found to lie $3.6$ standard deviations below a Standard Model prediction based on a combination of Light Cone Sum Rule and Lattice QCD calculations. In addition, the first observation of the rare $B^0_s\rightarrow f_2^\prime(1525)渭^+渭^-$ decay is reported with a statistical significance of nine standard deviations and its branching fraction is determined. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14007v2-abstract-full').style.display = 'none'; document.getElementById('2105.14007v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-014.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-014, CERN-EP-2021-092 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 127, 151801 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.09889">arXiv:2105.09889</a> <span> [<a href="https://arxiv.org/pdf/2105.09889">pdf</a>, <a href="https://arxiv.org/format/2105.09889">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.072010">10.1103/PhysRevD.104.072010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for time-dependent $CP$ violation in $D^0 \to K^+ K^-$ and $D^0 \to 蟺^+ 蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (939 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.09889v2-abstract-short" style="display: inline;"> A search for time-dependent violation of the charge-parity symmetry in $D^0 \to K^+ K^-$ and $D^0 \to 蟺^+ 蟺^-$ decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. The $D^0$ meson is required to originate from a $D^*(2010)^+ \to D^0 蟺^+$ decay, such th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.09889v2-abstract-full').style.display = 'inline'; document.getElementById('2105.09889v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.09889v2-abstract-full" style="display: none;"> A search for time-dependent violation of the charge-parity symmetry in $D^0 \to K^+ K^-$ and $D^0 \to 蟺^+ 蟺^-$ decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. The $D^0$ meson is required to originate from a $D^*(2010)^+ \to D^0 蟺^+$ decay, such that its flavour at production is identified by the charge of the accompanying pion. The slope of the time-dependent asymmetry of the decay rates of $D^0$ and $\bar{D}^0$ mesons into the final states under consideration is measured to be $螖Y_{K^+ K^-} = (-2.3 \pm 1.5 \pm 0.3) \times 10^{-4}$, $螖Y_{蟺^+ 蟺^-} = (-4.0 \pm 2.8 \pm 0.4)\times 10^{-4}$, where the first uncertainties are statistical and the second are systematic. These results are compatible with the conservation of the charge-parity symmetry at the level of 2 standard deviations and improve the precision by nearly a factor of two. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.09889v2-abstract-full').style.display = 'none'; document.getElementById('2105.09889v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated to match published version; all figures and tables, along with supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-045.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2020-045, CERN-EP-2021-060 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104 (2021) 072010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.06841">arXiv:2105.06841</a> <span> [<a href="https://arxiv.org/pdf/2105.06841">pdf</a>, <a href="https://arxiv.org/format/2105.06841">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s11433-021-1742-7">10.1007/s11433-021-1742-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the doubly charmed baryon $\it惟_{cc}^{+}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Artamonov%2C+A">A. Artamonov</a> , et al. (942 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.06841v4-abstract-short" style="display: inline;"> A search for the doubly charmed baryon $\it惟_{cc}^{+}$ with the decay mode $\it惟_{cc}^{+}\to\it螢_c^{+}K^{-}蟺^{+}$ is performed using proton-proton collision data at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$ collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$. No significant signal is observed within the invariant… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.06841v4-abstract-full').style.display = 'inline'; document.getElementById('2105.06841v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.06841v4-abstract-full" style="display: none;"> A search for the doubly charmed baryon $\it惟_{cc}^{+}$ with the decay mode $\it惟_{cc}^{+}\to\it螢_c^{+}K^{-}蟺^{+}$ is performed using proton-proton collision data at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$ collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$. No significant signal is observed within the invariant mass range of 3.6 to 4.0$\mathrm{\,Ge\kern -0.1em V}/c^2$. Upper limits are set on the ratio $R$ of the production cross-section times the total branching fraction of the $\it惟_{cc}^{+}\to\it螢_c^{+}K^{-}蟺^{+}$ decay with respect to the $\it螢_{cc}^{++}\to\it螞_c^{+}K^{-}蟺^{+}蟺^{+}$ decay. Upper limits at 95% credibility level for $R$ in the range $0.005$ to $0.11$ are obtained for different hypotheses on the $\it惟_{cc}^{+}$ mass and lifetime in the rapidity range from 2.0 to 4.5 and transverse momentum range from 4 to 15$\mathrm{\,Ge\kern -0.1em V}/c$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.06841v4-abstract-full').style.display = 'none'; document.getElementById('2105.06841v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-011.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-011, CERN-EP-2021-068 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Sci. China-Phys. Mech. Astron. 64, 101062 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.02596">arXiv:2105.02596</a> <span> [<a href="https://arxiv.org/pdf/2105.02596">pdf</a>, <a href="https://arxiv.org/format/2105.02596">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP06(2021)177">10.1007/JHEP06(2021)177 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Angular analysis of $B^0 \to D^{*-}D_s^{*+}$ with $D_s^{*+} \to D_s^+ 纬$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (933 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.02596v2-abstract-short" style="display: inline;"> The first full angular analysis of the $B^0 \to D^{*-} D_s^{*+}$ decay is performed using 6 fb$^{-1}$ of $pp$ collision data collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The $D_s^{*+} \to D_s^+ 纬$ and $D^{*-} \to \bar{D}^0 蟺^-$ vector meson decays are used with the subsequent $D_s^+ \to K^+ K^- 蟺^+$ and $\bar{D}^0 \to K^+ 蟺^-$ decays. All helicity amplitudes and phases… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.02596v2-abstract-full').style.display = 'inline'; document.getElementById('2105.02596v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.02596v2-abstract-full" style="display: none;"> The first full angular analysis of the $B^0 \to D^{*-} D_s^{*+}$ decay is performed using 6 fb$^{-1}$ of $pp$ collision data collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The $D_s^{*+} \to D_s^+ 纬$ and $D^{*-} \to \bar{D}^0 蟺^-$ vector meson decays are used with the subsequent $D_s^+ \to K^+ K^- 蟺^+$ and $\bar{D}^0 \to K^+ 蟺^-$ decays. All helicity amplitudes and phases are measured, and the longitudinal polarisation fraction is determined to be $f_{\rm L} = 0.578 \pm 0.010 \pm 0.011$ with world-best precision, where the first uncertainty is statistical and the second is systematic. The pattern of helicity amplitude magnitudes is found to align with expectations from quark-helicity conservation in $B$ decays. The ratio of branching fractions $[\mathcal{B}(B^0 \to D^{*-} D_s^{*+}) \times \mathcal{B}(D_s^{*+} \to D_s^+ 纬)]/\mathcal{B}(B^0 \to D^{*-} D_s^+)$ is measured to be $2.045 \pm 0.022 \pm 0.071$ with world-best precision. In addition, the first observation of the Cabibbo-suppressed $B_s^0 \to D^{*-} D_s^+$ decay is made with a significance of seven standard deviations. The branching fraction ratio $\mathcal{B}(B_s^0 \to D^{*-} D_s^+)/\mathcal{B}(B^0 \to D^{*-} D_s^+)$ is measured to be $0.049 \pm 0.006 \pm 0.003 \pm 0.002$, where the third uncertainty is due to limited knowledge of the ratio of fragmentation fractions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.02596v2-abstract-full').style.display = 'none'; document.getElementById('2105.02596v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-006.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-006, CERN-EP-2021-056 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of High Energy Physics, 06 (2021) 177 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.01565">arXiv:2105.01565</a> <span> [<a href="https://arxiv.org/pdf/2105.01565">pdf</a>, <a href="https://arxiv.org/format/2105.01565">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.L031102">10.1103/PhysRevD.104.L031102 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (941 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.01565v2-abstract-short" style="display: inline;"> A measurement of the $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb$^{-1}$. The flavor of the $D^0$ candidate is determined using the charge of the $D^{*\pm}$ meson, from which the decay is required to originate. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.01565v2-abstract-full').style.display = 'inline'; document.getElementById('2105.01565v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.01565v2-abstract-full" style="display: none;"> A measurement of the $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb$^{-1}$. The flavor of the $D^0$ candidate is determined using the charge of the $D^{*\pm}$ meson, from which the decay is required to originate. The $D^0 \to K^+ K^-$ decay is used as a calibration channel. The time-integrated $CP$ asymmetry for the $D^0 \to K^0_S K^0_S$ mode is measured to be: $$A^{CP}(D^0 \to K^0_S K^0_S) = (-3.1\pm 1.2\pm 0.4 \pm 0.2)\%, $$ where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the $CP$ asymmetry of the calibration channel. This is the most precise determination of this quantity to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.01565v2-abstract-full').style.display = 'none'; document.getElementById('2105.01565v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-047.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2020-047, CERN-EP-2021-058 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 031102 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.15074">arXiv:2104.15074</a> <span> [<a href="https://arxiv.org/pdf/2104.15074">pdf</a>, <a href="https://arxiv.org/format/2104.15074">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.052010">10.1103/PhysRevD.104.052010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for $CP$ violation in $螢_b^- \to p K^- K^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreianov%2C+A">A. Andreianov</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (943 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2104.15074v2-abstract-short" style="display: inline;"> A search for $CP$ violation in charmless three-body $螢_b^- \to p K^- K^-$ decays is performed using $pp$ collision data recorded with the LHCb detector, corresponding to integrated luminosities of $1\,\text{fb}^{-1}$ at a centre-of-mass energy $\sqrt{s} = 7\,\text{TeV}$, $2\,\text{fb}^{-1}$ at $\sqrt{s} = 8\,\text{TeV}$ and $2\,\text{fb}^{-1}$ at $\sqrt{s} = 13\,\text{TeV}$. A good description of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.15074v2-abstract-full').style.display = 'inline'; document.getElementById('2104.15074v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.15074v2-abstract-full" style="display: none;"> A search for $CP$ violation in charmless three-body $螢_b^- \to p K^- K^-$ decays is performed using $pp$ collision data recorded with the LHCb detector, corresponding to integrated luminosities of $1\,\text{fb}^{-1}$ at a centre-of-mass energy $\sqrt{s} = 7\,\text{TeV}$, $2\,\text{fb}^{-1}$ at $\sqrt{s} = 8\,\text{TeV}$ and $2\,\text{fb}^{-1}$ at $\sqrt{s} = 13\,\text{TeV}$. A good description of the phase-space distribution is obtained with an amplitude model containing contributions from $危(1385)$, $螞(1405)$, $螞(1520)$, $螞(1670)$, $危(1775)$ and $危(1915)$ resonances. The model allows for $CP$-violation effects, which are found to be consistent with zero. The branching fractions of $螢_b^- \to 危(1385) K^-$, $螢_b^- \to 螞(1405) K^-$, $螢_b^- \to 螞(1520) K^-$, $螢_b^- \to 螞(1670) K^-$, $螢_b^- \to 危(1775) K^-$ and $螢_b^- \to 危(1915) K^-$ decays are also reported. In addition, an upper limit is placed on the product of ratios of $惟_b^-$ and $螢_b^-$ fragmentation fractions and the $惟_b^- \to p K^- K^-$ and $螢_b^- \to p K^- K^-$ branching fractions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.15074v2-abstract-full').style.display = 'none'; document.getElementById('2104.15074v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-017.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2020-017, CERN-EP-2021-062 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 052010 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.04759">arXiv:2104.04759</a> <span> [<a href="https://arxiv.org/pdf/2104.04759">pdf</a>, <a href="https://arxiv.org/format/2104.04759">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/ac0c70">10.1088/1674-1137/ac0c70 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the doubly heavy baryons $\it惟_{bc}^{\rm0}$ and $\it螢_{bc}^{\rm0}$ decaying to $\it{螞_{c}^{+}蟺^{-}}$ and $\it{螢_{c}^{+}蟺^{-}}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abell谩n Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Aiola%2C+S">S. Aiola</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Alkhazov%2C+G">G. Alkhazov</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Alves%2C+A+A">A. A. Alves Jr</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+L">L. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Andreassi%2C+G">G. Andreassi</a>, <a href="/search/hep-ex?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a> , et al. (882 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2104.04759v3-abstract-short" style="display: inline;"> The first search for the doubly heavy $\it惟_{bc}^{\rm0}$ baryon and a search for $\it螢_{bc}^{\rm0}$ baryon are performed using $pp$ collision data collected via the LHCb experiment from 2016 to 2018 at a centre-of-mass energy of $13TeV$, corresponding to an integrated luminosity of 5.2$fb^{-1}$. The baryons are reconstructed via their decays to $\it{螞_{c}^{+}蟺^{-}}$ and $\it{螢_{c}^{+}蟺^{-}}$. No s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.04759v3-abstract-full').style.display = 'inline'; document.getElementById('2104.04759v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.04759v3-abstract-full" style="display: none;"> The first search for the doubly heavy $\it惟_{bc}^{\rm0}$ baryon and a search for $\it螢_{bc}^{\rm0}$ baryon are performed using $pp$ collision data collected via the LHCb experiment from 2016 to 2018 at a centre-of-mass energy of $13TeV$, corresponding to an integrated luminosity of 5.2$fb^{-1}$. The baryons are reconstructed via their decays to $\it{螞_{c}^{+}蟺^{-}}$ and $\it{螢_{c}^{+}蟺^{-}}$. No significant excess is found for invariant masses between 6700 and 7300$MeV/c^2$, in a rapidity range from 2.0 to 4.5 and a transverse momentum range from 2 to 20$GeV/c$. Upper limits are set on the ratio of the $\it惟_{bc}^{\rm0}$ and $\it螢_{bc}^{\rm0}$ production cross-section times the branching fraction to $\it{螞_{c}^{+}蟺^{-}}$ ($\it{螢_{c}^{+}蟺^{-}}$) relative to that of the $\it{螞_b^{\rm0}}$ ($\it{螢_b^{\rm0}}$) baryon, for different lifetime hypotheses, at $95\%$ confidence level. The upper limits range from $0.5\times10^{-4}$ to $2.5\times10^{-4}$ for the $\it惟_{bc}^{\rm0}\rightarrow\it{螞_{c}^{+}蟺^{-}}$ ($\it螢_{bc}^{\rm0}\rightarrow\it{螞_{c}^{+}蟺^{-}}$) decay, and from $1.4\times10^{-3}$ to $6.9\times10^{-3}$ for the $\it惟_{bc}^{\rm0}\rightarrow\it{螢_{c}^{+}蟺^{-}}$ ($\it螢_{bc}^{\rm0}\rightarrow\it{螢_{c}^{+}蟺^{-}}$) decay, depending on the considered mass and lifetime of the $\it惟_{bc}^{\rm0}$ ($\it螢_{bc}^{\rm0}$) baryon. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.04759v3-abstract-full').style.display = 'none'; document.getElementById('2104.04759v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-002.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2021-002, CERN-EP-2021-046 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chin. Phys. C 45 (2021) 093002 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=150" class="pagination-link " aria-label="Page 4" aria-current="page">4 </a> </li> <li> <a href="/search/?searchtype=author&query=Alkhazov%2C+G&start=200" class="pagination-link " aria-label="Page 5" aria-current="page">5 </a> </li> <li><span class="pagination-ellipsis">…</span></li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

CINXE.COM

Search | arXiv e-print repository