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 1–47 of 47 results for author: <span class="mathjax">Ligeti, Z</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=Ligeti%2C+Z">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="Ligeti, Z"> </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=Ligeti%2C+Z&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="Ligeti, Z"> <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> <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/2402.09535">arXiv:2402.09535</a> <span> [<a href="https://arxiv.org/pdf/2402.09535">pdf</a>, <a href="https://arxiv.org/format/2402.09535">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 - Phenomenology">hep-ph</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"> On magnitudes of some CKM matrix elements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="2402.09535v2-abstract-short" style="display: inline;"> This writeup follows the presentation at the Symposium, with emphasis on topics and ideas discussed there. It is purposefully informal, not a review of the field, and neither does it include a complete list of references. However, I hope that readers might find some comments useful or amusing, and may appreciate the challenges and reasons for excitement about recent progress and future opportuniti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.09535v2-abstract-full').style.display = 'inline'; document.getElementById('2402.09535v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.09535v2-abstract-full" style="display: none;"> This writeup follows the presentation at the Symposium, with emphasis on topics and ideas discussed there. It is purposefully informal, not a review of the field, and neither does it include a complete list of references. However, I hope that readers might find some comments useful or amusing, and may appreciate the challenges and reasons for excitement about recent progress and future opportunities in flavor physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.09535v2-abstract-full').style.display = 'none'; document.getElementById('2402.09535v2-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 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </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">12 pages, Talk given at the KM50 Symposium, KEK, Tsukuba, February 2023 (https://www-conf.kek.jp/KM50/), published version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.07564">arXiv:2401.07564</a> <span> [<a href="https://arxiv.org/pdf/2401.07564">pdf</a>, <a href="https://arxiv.org/format/2401.07564">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 - Phenomenology">hep-ph</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"> Focus topics for the ECFA study on Higgs / Top / EW factories </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=de+Blas%2C+J">Jorge de Blas</a>, <a href="/search/hep-ex?searchtype=author&query=Koppenburg%2C+P">Patrick Koppenburg</a>, <a href="/search/hep-ex?searchtype=author&query=List%2C+J">Jenny List</a>, <a href="/search/hep-ex?searchtype=author&query=Maltoni%2C+F">Fabio Maltoni</a>, <a href="/search/hep-ex?searchtype=author&query=Maestre%2C+J+A">Juan Alcaraz Maestre</a>, <a href="/search/hep-ex?searchtype=author&query=Alimena%2C+J">Juliette Alimena</a>, <a href="/search/hep-ex?searchtype=author&query=Alison%2C+J">John Alison</a>, <a href="/search/hep-ex?searchtype=author&query=Azzi%2C+P">Patrizia Azzi</a>, <a href="/search/hep-ex?searchtype=author&query=Azzurri%2C+P">Paolo Azzurri</a>, <a href="/search/hep-ex?searchtype=author&query=Bagnaschi%2C+E">Emanuele Bagnaschi</a>, <a href="/search/hep-ex?searchtype=author&query=Barklow%2C+T">Timothy Barklow</a>, <a href="/search/hep-ex?searchtype=author&query=Basso%2C+M+J">Matthew J. Basso</a>, <a href="/search/hep-ex?searchtype=author&query=Bendavid%2C+J">Josh Bendavid</a>, <a href="/search/hep-ex?searchtype=author&query=Beneke%2C+M">Martin Beneke</a>, <a href="/search/hep-ex?searchtype=author&query=Ben-Haim%2C+E">Eli Ben-Haim</a>, <a href="/search/hep-ex?searchtype=author&query=Berggren%2C+M">Mikael Berggren</a>, <a href="/search/hep-ex?searchtype=author&query=Bordone%2C+M">Marzia Bordone</a>, <a href="/search/hep-ex?searchtype=author&query=Bozovic%2C+I">Ivanka Bozovic</a>, <a href="/search/hep-ex?searchtype=author&query=Cairo%2C+V">Valentina Cairo</a>, <a href="/search/hep-ex?searchtype=author&query=Castro%2C+N+F">Nuno Filipe Castro</a>, <a href="/search/hep-ex?searchtype=author&query=Cobal%2C+M">Marina Cobal</a>, <a href="/search/hep-ex?searchtype=author&query=Collins%2C+P">Paula Collins</a>, <a href="/search/hep-ex?searchtype=author&query=Dam%2C+M">Mogens Dam</a>, <a href="/search/hep-ex?searchtype=author&query=Dao%2C+V">Valerio Dao</a>, <a href="/search/hep-ex?searchtype=author&query=Defranchis%2C+M">Matteo Defranchis</a> , et al. (83 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="2401.07564v3-abstract-short" style="display: inline;"> In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top / Electroweak factory, we propose to define a set of focus topics. The general reasoning and the proposed topics are described in this document. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.07564v3-abstract-full" style="display: none;"> In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top / Electroweak factory, we propose to define a set of focus topics. The general reasoning and the proposed topics are described in this document. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.07564v3-abstract-full').style.display = 'none'; document.getElementById('2401.07564v3-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> 18 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </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">v3: fixed spelling of two authors</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.02923">arXiv:2311.02923</a> <span> [<a href="https://arxiv.org/pdf/2311.02923">pdf</a>, <a href="https://arxiv.org/format/2311.02923">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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="High Energy Physics - Lattice">hep-lat</span> </div> </div> <p class="title is-5 mathjax"> Workshop summary -- Kaons@CERN 2023 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anzivino%2C+G">G. Anzivino</a>, <a href="/search/hep-ex?searchtype=author&query=Cuendis%2C+S+A">S. Arguedas Cuendis</a>, <a href="/search/hep-ex?searchtype=author&query=Bernard%2C+V">V. Bernard</a>, <a href="/search/hep-ex?searchtype=author&query=Bijnens%2C+J">J. Bijnens</a>, <a href="/search/hep-ex?searchtype=author&query=Bloch-Devaux%2C+B">B. Bloch-Devaux</a>, <a href="/search/hep-ex?searchtype=author&query=Bordone%2C+M">M. Bordone</a>, <a href="/search/hep-ex?searchtype=author&query=Brizioli%2C+F">F. Brizioli</a>, <a href="/search/hep-ex?searchtype=author&query=Brod%2C+J">J. Brod</a>, <a href="/search/hep-ex?searchtype=author&query=Camalich%2C+J+M">J. M. Camalich</a>, <a href="/search/hep-ex?searchtype=author&query=Ceccucci%2C+A">A. Ceccucci</a>, <a href="/search/hep-ex?searchtype=author&query=Cenci%2C+P">P. Cenci</a>, <a href="/search/hep-ex?searchtype=author&query=Christ%2C+N+H">N. H. Christ</a>, <a href="/search/hep-ex?searchtype=author&query=Colangelo%2C+G">G. Colangelo</a>, <a href="/search/hep-ex?searchtype=author&query=Cornella%2C+C">C. Cornella</a>, <a href="/search/hep-ex?searchtype=author&query=Crivellin%2C+A">A. Crivellin</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Ambrosio%2C+G">G. D'Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Deppisch%2C+F+F">F. F. Deppisch</a>, <a href="/search/hep-ex?searchtype=author&query=Dery%2C+A">A. Dery</a>, <a href="/search/hep-ex?searchtype=author&query=Dettori%2C+F">F. Dettori</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Carlo%2C+M">M. Di Carlo</a>, <a href="/search/hep-ex?searchtype=author&query=D%C3%B6brich%2C+B">B. D枚brich</a>, <a href="/search/hep-ex?searchtype=author&query=Engelfried%2C+J">J. Engelfried</a>, <a href="/search/hep-ex?searchtype=author&query=Fantechi%2C+R">R. Fantechi</a>, <a href="/search/hep-ex?searchtype=author&query=Gonz%C3%A1lez-Alonso%2C+M">M. Gonz谩lez-Alonso</a>, <a href="/search/hep-ex?searchtype=author&query=Gorbahn%2C+M">M. Gorbahn</a> , et al. (38 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="2311.02923v3-abstract-short" style="display: inline;"> Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II on the table and under scrutiny, it is a very good moment in time to take stock and contemplate about the opportunities these experiments and theoretical develo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.02923v3-abstract-full').style.display = 'inline'; document.getElementById('2311.02923v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.02923v3-abstract-full" style="display: none;"> Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II on the table and under scrutiny, it is a very good moment in time to take stock and contemplate about the opportunities these experiments and theoretical developments provide for particle physics in the coming decade and beyond. This paper provides a compact summary of talks and discussions from the Kaons@CERN 2023 workshop. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.02923v3-abstract-full').style.display = 'none'; document.getElementById('2311.02923v3-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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">55 pages, Summary of Kaons@CERN 23 workshop, references updated, typos fixed, version as published in EPJC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-TH-2023-206 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.04686">arXiv:2306.04686</a> <span> [<a href="https://arxiv.org/pdf/2306.04686">pdf</a>, <a href="https://arxiv.org/format/2306.04686">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 - Phenomenology">hep-ph</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"> Novel approaches to determine $B^\pm$ and $B^0$ meson production fractions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F">Florian Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Jung%2C+M">Martin Jung</a>, <a href="/search/hep-ex?searchtype=author&query=Khan%2C+M">Munira Khan</a>, <a href="/search/hep-ex?searchtype=author&query=Landsberg%2C+G">Greg Landsberg</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="2306.04686v1-abstract-short" style="display: inline;"> We propose novel methods to determine the $违(4S)\to B^+B^-$ and $违(4S)\to B^0\bar B^0$ decay rates. The precision to which they and their ratio are known yields at present a limiting uncertainty around $2\%$ in measurements of absolute $B$ decay rates, and thus in a variety of applications, such as precision determinations of elements of the Cabibbo-Kobayashi-Maskawa matrix and flavor symmetry rel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.04686v1-abstract-full').style.display = 'inline'; document.getElementById('2306.04686v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.04686v1-abstract-full" style="display: none;"> We propose novel methods to determine the $违(4S)\to B^+B^-$ and $违(4S)\to B^0\bar B^0$ decay rates. The precision to which they and their ratio are known yields at present a limiting uncertainty around $2\%$ in measurements of absolute $B$ decay rates, and thus in a variety of applications, such as precision determinations of elements of the Cabibbo-Kobayashi-Maskawa matrix and flavor symmetry relations. The new methods we propose are based in one case on exploiting the $违(5S)$ data sets, in the other case on the different average number of charged tracks in $B^\pm$ and $B^0$ decays. We estimate future sensitivities using these methods and discuss possible measurements of $f_d / f_u$ at the (HL-)LHC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.04686v1-abstract-full').style.display = 'none'; document.getElementById('2306.04686v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </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">10 pages, 3 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.04764">arXiv:2302.04764</a> <span> [<a href="https://arxiv.org/pdf/2302.04764">pdf</a>, <a href="https://arxiv.org/format/2302.04764">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.107.096008">10.1103/PhysRevD.107.096008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Exploring the $蟿$ polarization in $B\to X蟿\bar谓$ along different axes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">Michele Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Robinson%2C+D+J">Dean J. Robinson</a> </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="2302.04764v2-abstract-short" style="display: inline;"> The $蟿$ polarization in semileptonic $B$ decays provides probes of new physics complementary to decay rate distributions of the three-body final state. Prior calculations for inclusive decays used a definition for the polarization axis that is different from the choice used in calculations (and the only measurement) for exclusive channels. To compare inclusive and exclusive predictions, we calcula… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.04764v2-abstract-full').style.display = 'inline'; document.getElementById('2302.04764v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.04764v2-abstract-full" style="display: none;"> The $蟿$ polarization in semileptonic $B$ decays provides probes of new physics complementary to decay rate distributions of the three-body final state. Prior calculations for inclusive decays used a definition for the polarization axis that is different from the choice used in calculations (and the only measurement) for exclusive channels. To compare inclusive and exclusive predictions, we calculate the $蟿$ polarization in inclusive $B\to X蟿\bar谓$ using the same choice as in the exclusive decays, and construct a sum rule relating the inclusive $蟿$ polarization to a weighted sum of exclusive decay polarizations. We use this relation, experimental data, and theoretical predictions for the decays to the lightest charm or up-type hadrons to make predictions for excited channels. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.04764v2-abstract-full').style.display = 'none'; document.getElementById('2302.04764v2-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 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </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">6 pages, 2 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.07685">arXiv:2112.07685</a> <span> [<a href="https://arxiv.org/pdf/2112.07685">pdf</a>, <a href="https://arxiv.org/format/2112.07685">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 - Phenomenology">hep-ph</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"> Theoretical predictions for inclusive $B\to X_u 蟿\bar谓$ decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Luke%2C+M">Michael Luke</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a> </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="2112.07685v2-abstract-short" style="display: inline;"> With the expected large increase in data sets, previously not measured decays will be studied at Belle II. We derive standard model predictions for the $B\to X_u 蟿\bar谓$ decay rate and distributions. The region in the lepton energy spectrum where higher-dimension operators in the local OPE need to be resummed into the $b$-quark light-cone distribution function is a significantly greater fraction o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.07685v2-abstract-full').style.display = 'inline'; document.getElementById('2112.07685v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.07685v2-abstract-full" style="display: none;"> With the expected large increase in data sets, previously not measured decays will be studied at Belle II. We derive standard model predictions for the $B\to X_u 蟿\bar谓$ decay rate and distributions. The region in the lepton energy spectrum where higher-dimension operators in the local OPE need to be resummed into the $b$-quark light-cone distribution function is a significantly greater fraction of the phase space than for massless leptons. The finite $蟿$ mass has the novel effect of shifting and squeezing how the distribution function enters the lepton energy spectrum. We also derive new predictions for the $蟿$ polarization. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.07685v2-abstract-full').style.display = 'none'; document.getElementById('2112.07685v2-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 May, 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">6 pages, published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 21-215 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.04320">arXiv:2007.04320</a> <span> [<a href="https://arxiv.org/pdf/2007.04320">pdf</a>, <a href="https://arxiv.org/format/2007.04320">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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 Theory">nucl-th</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.127.102001">10.1103/PhysRevLett.127.102001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision Global Determination of the $B\to X_s纬$ Decay Rate </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=SIMBA+collaboration"> SIMBA collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Lacker%2C+H">Heiko Lacker</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+K">Kerstin Tackmann</a> </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="2007.04320v1-abstract-short" style="display: inline;"> We perform the first global fit to inclusive $B\to X_s纬$ measurements using a model-independent treatment of the nonperturbative $b$-quark distribution function, with next-to-next-to-leading logarithmic resummation and $\mathcal{O}(伪_s^2)$ fixed-order contributions. The normalization of the $B\to X_s纬$ decay rate, given by $\lvert C_7^{\rm incl} V_{tb} V_{ts}^*\rvert^2$, is sensitive to physics be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.04320v1-abstract-full').style.display = 'inline'; document.getElementById('2007.04320v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.04320v1-abstract-full" style="display: none;"> We perform the first global fit to inclusive $B\to X_s纬$ measurements using a model-independent treatment of the nonperturbative $b$-quark distribution function, with next-to-next-to-leading logarithmic resummation and $\mathcal{O}(伪_s^2)$ fixed-order contributions. The normalization of the $B\to X_s纬$ decay rate, given by $\lvert C_7^{\rm incl} V_{tb} V_{ts}^*\rvert^2$, is sensitive to physics beyond the Standard Model (SM). We determine $\lvert C_7^{\rm incl} V_{tb} V_{ts}^* \rvert = (14.77 \pm 0.51_{\rm fit} \pm 0.59_{\rm theory} \pm 0.08_{\rm param})\times 10^{-3}$, in good agreement with the SM prediction, and the $b$-quark mass $m_b^{1S} = (4.750 \pm 0.027_{\rm fit} \pm 0.033_{\rm theory} \pm 0.003_{\rm param})\,\mathrm{GeV}$. Our results suggest that the uncertainties in the extracted $B\to X_s纬$ rate have been underestimated by up to a factor of two, leaving more room for beyond-SM contributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.04320v1-abstract-full').style.display = 'none'; document.getElementById('2007.04320v1-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 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </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">21 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 20-115, MIT-CTP 5220 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 127, 102001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.12404">arXiv:2006.12404</a> <span> [<a href="https://arxiv.org/pdf/2006.12404">pdf</a>, <a href="https://arxiv.org/format/2006.12404">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="History and Philosophy of Physics">physics.hist-ph</span> <span class="tag is-small is-grey 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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Origins of the method to determine the CKM angle $纬$ using $B^{\pm} \to D K^{\pm}$, $D \to K_{\rm S}^0蟺^+蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ceccucci%2C+A">A. Ceccucci</a>, <a href="/search/hep-ex?searchtype=author&query=Gershon%2C+T">T. Gershon</a>, <a href="/search/hep-ex?searchtype=author&query=Kenzie%2C+M">M. Kenzie</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Sakai%2C+Y">Y. Sakai</a>, <a href="/search/hep-ex?searchtype=author&query=Trabelsi%2C+K">K. Trabelsi</a> </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="2006.12404v1-abstract-short" style="display: inline;"> The angle $纬$ of the Cabibbo--Kobayashi--Maskawa unitarity triangle is a benchmark parameter of the Standard Model of particle physics. A method to determine $纬$ from $B^{\pm} \to D K^{\pm}$ with subsequent $D \to K_{\rm S}^0蟺^+蟺^-$ or similar multibody decays has been proven to provide good sensitivity. We review the first discussions on the use of this technique, and its impact subsequently. We… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.12404v1-abstract-full').style.display = 'inline'; document.getElementById('2006.12404v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.12404v1-abstract-full" style="display: none;"> The angle $纬$ of the Cabibbo--Kobayashi--Maskawa unitarity triangle is a benchmark parameter of the Standard Model of particle physics. A method to determine $纬$ from $B^{\pm} \to D K^{\pm}$ with subsequent $D \to K_{\rm S}^0蟺^+蟺^-$ or similar multibody decays has been proven to provide good sensitivity. We review the first discussions on the use of this technique, and its impact subsequently. We propose that this approach should be referred to as the BPGGSZ method. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.12404v1-abstract-full').style.display = 'none'; document.getElementById('2006.12404v1-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> 22 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.07287">arXiv:2006.07287</a> <span> [<a href="https://arxiv.org/pdf/2006.07287">pdf</a>, <a href="https://arxiv.org/format/2006.07287">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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="High Energy Physics - Lattice">hep-lat</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/s10052-020-08490-x">10.1140/epjc/s10052-020-08490-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Challenges in Semileptonic B Decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Gambino%2C+P">P. Gambino</a>, <a href="/search/hep-ex?searchtype=author&query=Kronfeld%2C+A+S">A. S. Kronfeld</a>, <a href="/search/hep-ex?searchtype=author&query=Rotondo%2C+M">M. Rotondo</a>, <a href="/search/hep-ex?searchtype=author&query=Schwanda%2C+C">C. Schwanda</a>, <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F">F. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Bharucha%2C+A">A. Bharucha</a>, <a href="/search/hep-ex?searchtype=author&query=Bozzi%2C+C">C. Bozzi</a>, <a href="/search/hep-ex?searchtype=author&query=Calvi%2C+M">M. Calvi</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+L">L. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ciezarek%2C+G">G. Ciezarek</a>, <a href="/search/hep-ex?searchtype=author&query=Davies%2C+C+T+H">C. T. H. Davies</a>, <a href="/search/hep-ex?searchtype=author&query=El-Khadra%2C+A+X">A. X. El-Khadra</a>, <a href="/search/hep-ex?searchtype=author&query=Hashimoto%2C+S">S. Hashimoto</a>, <a href="/search/hep-ex?searchtype=author&query=Jung%2C+M">M. Jung</a>, <a href="/search/hep-ex?searchtype=author&query=Khodjamirian%2C+A">A. Khodjamirian</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Lunghi%2C+E">E. Lunghi</a>, <a href="/search/hep-ex?searchtype=author&query=Luth%2C+V">V. Luth</a>, <a href="/search/hep-ex?searchtype=author&query=Mannel%2C+T">T. Mannel</a>, <a href="/search/hep-ex?searchtype=author&query=Meinel%2C+S">S. Meinel</a>, <a href="/search/hep-ex?searchtype=author&query=Paz%2C+G">G. Paz</a>, <a href="/search/hep-ex?searchtype=author&query=Schacht%2C+S">S. Schacht</a>, <a href="/search/hep-ex?searchtype=author&query=Simula%2C+S">S. Simula</a>, <a href="/search/hep-ex?searchtype=author&query=Sutcliffe%2C+W">W. Sutcliffe</a>, <a href="/search/hep-ex?searchtype=author&query=Aviles-Casco%2C+A+V">A. Vaquero Aviles-Casco</a> </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="2006.07287v2-abstract-short" style="display: inline;"> Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, $|V_{ub}|$ and $|V_{cb}|$, are extracted from semileptonic B decays. The results of the B factories, analysed in the light of the most recent theoretical calculations, remain puzzling, because for both $|V_{ub}|$ and $|V_{cb}|$ the exclusive and inclusive determinations are in clear tension. Further, measurements in the $蟿$… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07287v2-abstract-full').style.display = 'inline'; document.getElementById('2006.07287v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.07287v2-abstract-full" style="display: none;"> Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, $|V_{ub}|$ and $|V_{cb}|$, are extracted from semileptonic B decays. The results of the B factories, analysed in the light of the most recent theoretical calculations, remain puzzling, because for both $|V_{ub}|$ and $|V_{cb}|$ the exclusive and inclusive determinations are in clear tension. Further, measurements in the $蟿$ channels at Belle, Babar, and LHCb show discrepancies with the Standard Model predictions, pointing to a possible violation of lepton flavor universality. LHCb and Belle II have the potential to resolve these issues in the next few years. This article summarizes the discussions and results obtained at the MITP workshop held on April 9--13, 2018, in Mainz, Germany, with the goal to develop a medium-term strategy of analyses and calculations aimed at solving the puzzles. Lattice and continuum theorists working together with experimentalists have discussed how to reshape the semileptonic analyses in view of the much higher luminosity expected at Belle II, searching for ways to systematically validate the theoretical predictions in both exclusive and inclusive B decays, and to exploit the rich possibilities at LHCb. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07287v2-abstract-full').style.display = 'none'; document.getElementById('2006.07287v2-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 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </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">77 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-235-T </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 80, 966 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.04824">arXiv:2006.04824</a> <span> [<a href="https://arxiv.org/pdf/2006.04824">pdf</a>, <a href="https://arxiv.org/ps/2006.04824">ps</a>, <a href="https://arxiv.org/format/2006.04824">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.102.056023">10.1103/PhysRevD.102.056023 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New physics in $B$ meson mixing: future sensitivity and limitations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Charles%2C+J">J. Charles</a>, <a href="/search/hep-ex?searchtype=author&query=Descotes-Genon%2C+S">S. Descotes-Genon</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Monteil%2C+S">S. Monteil</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">M. Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Trabelsi%2C+K">K. Trabelsi</a>, <a href="/search/hep-ex?searchtype=author&query=Silva%2C+L+V">L. Vale Silva</a> </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="2006.04824v1-abstract-short" style="display: inline;"> The mixing of neutral mesons is sensitive to some of the highest scales probed in laboratory experiments. In light of the planned LHCb Upgrade II, a possible upgrade of Belle II, and the broad interest in flavor physics in the tera-$Z$ phase of the proposed FCC-ee program, we study constraints on new physics contributions to $B_d$ and $B_s$ mixings which can be obtained in these benchmark scenario… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.04824v1-abstract-full').style.display = 'inline'; document.getElementById('2006.04824v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.04824v1-abstract-full" style="display: none;"> The mixing of neutral mesons is sensitive to some of the highest scales probed in laboratory experiments. In light of the planned LHCb Upgrade II, a possible upgrade of Belle II, and the broad interest in flavor physics in the tera-$Z$ phase of the proposed FCC-ee program, we study constraints on new physics contributions to $B_d$ and $B_s$ mixings which can be obtained in these benchmark scenarios. We explore the limitations of this program, and identify the measurement of $|V_{cb}|$ as one of the key ingredients in which progress beyond current expectations is necessary to maximize future sensitivity. We speculate on possible solutions to this bottleneck. Given the current tension with the standard model (SM) in semileptonic $B$ decays, we explore how its resolution may impact the search for new physics in mixing. Even if new physics has the same CKM and loop suppressions of flavor changing processes as the SM, the sensitivity will reach 2 TeV, and it can be much higher if any SM suppressions are lifted. We illustrate the discovery potential of this program. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.04824v1-abstract-full').style.display = 'none'; document.getElementById('2006.04824v1-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 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 102, 056023 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.00020">arXiv:2002.00020</a> <span> [<a href="https://arxiv.org/pdf/2002.00020">pdf</a>, <a href="https://arxiv.org/format/2002.00020">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/s10052-020-8304-0">10.1140/epjc/s10052-020-8304-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Das ist der HAMMER: Consistent new physics interpretations of semileptonic decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Duell%2C+S">Stephan Duell</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">Michele Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Robinson%2C+D+J">Dean J. Robinson</a> </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="2002.00020v2-abstract-short" style="display: inline;"> Precise measurements of $b\to c蟿\bar谓$ decays require large resource-intensive Monte Carlo (MC) samples, which incorporate detailed simulations of detector responses and physics backgrounds. Extracted parameters may be highly sensitive to the underlying theoretical models used in the MC generation. Because new physics (NP) can alter decay distributions and acceptances, the standard practice of fit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.00020v2-abstract-full').style.display = 'inline'; document.getElementById('2002.00020v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.00020v2-abstract-full" style="display: none;"> Precise measurements of $b\to c蟿\bar谓$ decays require large resource-intensive Monte Carlo (MC) samples, which incorporate detailed simulations of detector responses and physics backgrounds. Extracted parameters may be highly sensitive to the underlying theoretical models used in the MC generation. Because new physics (NP) can alter decay distributions and acceptances, the standard practice of fitting NP Wilson coefficients to SM-based measurements of the $R(D^{(*)})$ ratios can be biased. The newly developed HAMMER software tool enables efficient reweighting of MC samples to arbitrary NP scenarios or to any hadronic matrix elements. We demonstrate how HAMMER allows avoidance of biases through self-consistent fits directly to the NP Wilson coefficients. We also present example analyses that demonstrate the sizeable biases that can otherwise occur from naive NP interpretations of SM-based measurements. The HAMMER library is presently interfaced with several existing experimental analysis frameworks and we provide an overview of its structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.00020v2-abstract-full').style.display = 'none'; document.getElementById('2002.00020v2-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </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">19 pages, 4 figures, published version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.07638">arXiv:1812.07638</a> <span> [<a href="https://arxiv.org/pdf/1812.07638">pdf</a>, <a href="https://arxiv.org/format/1812.07638">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 - Phenomenology">hep-ph</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"> Opportunities in Flavour Physics at the HL-LHC and HE-LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Cerri%2C+A">A. Cerri</a>, <a href="/search/hep-ex?searchtype=author&query=Gligorov%2C+V+V">V. V. Gligorov</a>, <a href="/search/hep-ex?searchtype=author&query=Malvezzi%2C+S">S. Malvezzi</a>, <a href="/search/hep-ex?searchtype=author&query=Camalich%2C+J+M">J. Martin Camalich</a>, <a href="/search/hep-ex?searchtype=author&query=Zupan%2C+J">J. Zupan</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Alimena%2C+J">J. Alimena</a>, <a href="/search/hep-ex?searchtype=author&query=Allanach%2C+B+C">B. C. Allanach</a>, <a href="/search/hep-ex?searchtype=author&query=Altmannshofer%2C+W">W. Altmannshofer</a>, <a href="/search/hep-ex?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Azzi%2C+P">P. Azzi</a>, <a href="/search/hep-ex?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/hep-ex?searchtype=author&query=Barter%2C+W">W. Barter</a>, <a href="/search/hep-ex?searchtype=author&query=Barton%2C+A+E">A. E. Barton</a>, <a href="/search/hep-ex?searchtype=author&query=Bauer%2C+M">M. Bauer</a>, <a href="/search/hep-ex?searchtype=author&query=Belyaev%2C+I">I. Belyaev</a>, <a href="/search/hep-ex?searchtype=author&query=Benson%2C+S">S. Benson</a>, <a href="/search/hep-ex?searchtype=author&query=Bettler%2C+M">M. Bettler</a>, <a href="/search/hep-ex?searchtype=author&query=Bhattacharya%2C+R">R. Bhattacharya</a>, <a href="/search/hep-ex?searchtype=author&query=Bifani%2C+S">S. Bifani</a>, <a href="/search/hep-ex?searchtype=author&query=Birnkraut%2C+A">A. Birnkraut</a>, <a href="/search/hep-ex?searchtype=author&query=Bishara%2C+F">F. Bishara</a>, <a href="/search/hep-ex?searchtype=author&query=Blake%2C+T">T. Blake</a>, <a href="/search/hep-ex?searchtype=author&query=Blusk%2C+S">S. Blusk</a> , et al. (278 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="1812.07638v2-abstract-short" style="display: inline;"> Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain of physics. We document the extraordinary breadth of the HL/HE-LHC programme enabled by a putative Upgrade II of the dedicated flavour physics experiment LHCb and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.07638v2-abstract-full').style.display = 'inline'; document.getElementById('1812.07638v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.07638v2-abstract-full" style="display: none;"> Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain of physics. We document the extraordinary breadth of the HL/HE-LHC programme enabled by a putative Upgrade II of the dedicated flavour physics experiment LHCb and the evolution of the established flavour physics role of the ATLAS and CMS general purpose experiments. We connect the dedicated flavour physics programme to studies of the top quark, Higgs boson, and direct high-$p_T$ searches for new particles and force carriers. We discuss the complementarity of their discovery potential for physics beyond the Standard Model, affirming the necessity to fully exploit the LHC's flavour physics potential throughout its upgrade eras. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.07638v2-abstract-full').style.display = 'none'; document.getElementById('1812.07638v2-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 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </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">Report from Working Group 4 on the Physics of the HL-LHC, and Perspectives at the HE-LHC, 292 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.10567">arXiv:1808.10567</a> <span> [<a href="https://arxiv.org/pdf/1808.10567">pdf</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="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</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/10.1093/ptep/ptz106">10.1093/ptep/ptz106 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Belle II Physics Book </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Kou%2C+E">E. Kou</a>, <a href="/search/hep-ex?searchtype=author&query=Urquijo%2C+P">P. Urquijo</a>, <a href="/search/hep-ex?searchtype=author&query=Altmannshofer%2C+W">W. Altmannshofer</a>, <a href="/search/hep-ex?searchtype=author&query=Beaujean%2C+F">F. Beaujean</a>, <a href="/search/hep-ex?searchtype=author&query=Bell%2C+G">G. Bell</a>, <a href="/search/hep-ex?searchtype=author&query=Beneke%2C+M">M. Beneke</a>, <a href="/search/hep-ex?searchtype=author&query=Bigi%2C+I+I">I. I. Bigi</a>, <a href="/search/hep-ex?searchtype=author&query=Blanke%2C+F+B+M">F. Bishara M. Blanke</a>, <a href="/search/hep-ex?searchtype=author&query=Bobeth%2C+C">C. Bobeth</a>, <a href="/search/hep-ex?searchtype=author&query=Bona%2C+M">M. Bona</a>, <a href="/search/hep-ex?searchtype=author&query=Brambilla%2C+N">N. Brambilla</a>, <a href="/search/hep-ex?searchtype=author&query=Braun%2C+V+M">V. M. Braun</a>, <a href="/search/hep-ex?searchtype=author&query=Brod%2C+J">J. Brod</a>, <a href="/search/hep-ex?searchtype=author&query=Buras%2C+A+J">A. J. Buras</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+H+Y">H. Y. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Chiang%2C+C+W">C. W. Chiang</a>, <a href="/search/hep-ex?searchtype=author&query=Colangelo%2C+G">G. Colangelo</a>, <a href="/search/hep-ex?searchtype=author&query=Czyz%2C+H">H. Czyz</a>, <a href="/search/hep-ex?searchtype=author&query=Datta%2C+A">A. Datta</a>, <a href="/search/hep-ex?searchtype=author&query=De+Fazio%2C+F">F. De Fazio</a>, <a href="/search/hep-ex?searchtype=author&query=Deppisch%2C+T">T. Deppisch</a>, <a href="/search/hep-ex?searchtype=author&query=Dolan%2C+M+J">M. J. Dolan</a>, <a href="/search/hep-ex?searchtype=author&query=Fajfer%2C+S">S. Fajfer</a>, <a href="/search/hep-ex?searchtype=author&query=Feldmann%2C+T">T. Feldmann</a>, <a href="/search/hep-ex?searchtype=author&query=Godfrey%2C+S">S. Godfrey</a> , et al. (504 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="1808.10567v4-abstract-short" style="display: inline;"> We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB $e^+e^-$ collider. Belle II collected its first collisions in 2018, and is expected to operate for the next decade. It is anticipated to collect 50/ab of collision data over its lifetime. This book is the outcome of a joint effort of Belle II collaborators and theorists through the Belle II theor… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.10567v4-abstract-full').style.display = 'inline'; document.getElementById('1808.10567v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.10567v4-abstract-full" style="display: none;"> We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB $e^+e^-$ collider. Belle II collected its first collisions in 2018, and is expected to operate for the next decade. It is anticipated to collect 50/ab of collision data over its lifetime. This book is the outcome of a joint effort of Belle II collaborators and theorists through the Belle II theory interface platform (B2TiP), an effort that commenced in 2014. The aim of B2TiP was to elucidate the potential impacts of the Belle II program, which includes a wide scope of physics topics: B physics, charm, tau, quarkonium, electroweak precision measurements and dark sector searches. It is composed of nine working groups (WGs), which are coordinated by teams of theorist and experimentalists conveners: Semileptonic and leptonic B decays, Radiative and Electroweak penguins, phi_1 and phi_2 (time-dependent CP violation) measurements, phi_3 measurements, Charmless hadronic B decay, Charm, Quarkonium(like), tau and low-multiplicity processes, new physics and global fit analyses. This book highlights "golden- and silver-channels", i.e. those that would have the highest potential impact in the field. Theorists scrutinised the role of those measurements and estimated the respective theoretical uncertainties, achievable now as well as prospects for the future. Experimentalists investigated the expected improvements with the large dataset expected from Belle II, taking into account improved performance from the upgraded detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.10567v4-abstract-full').style.display = 'none'; document.getElementById('1808.10567v4-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 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </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">689 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> KEK Preprint 2018-27, BELLE2-PUB-PH-2018-001, FERMILAB-PUB-18-398-T, JLAB-THY-18-2780, INT-PUB-18-047, UWThPh 2018-26 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Prog Theor Exp Phys (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.09464">arXiv:1808.09464</a> <span> [<a href="https://arxiv.org/pdf/1808.09464">pdf</a>, <a href="https://arxiv.org/format/1808.09464">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.121.202001">10.1103/PhysRevLett.121.202001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New predictions for $螞_b\to螞_c$ semileptonic decays and tests of heavy quark symmetry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Robinson%2C+D+J">Dean J. Robinson</a>, <a href="/search/hep-ex?searchtype=author&query=Sutcliffe%2C+W+L">William L. Sutcliffe</a> </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="1808.09464v2-abstract-short" style="display: inline;"> The heavy quark effective theory makes model independent predictions for semileptonic $螞_b \to 螞_c$ decays in terms of a small set of parameters. No subleading Isgur-Wise function occurs at order $螞_{\rm QCD}/m_{c,b}$, and only two sub-subleading functions enter at order $螞_{\rm QCD}^2/m_c^2$. These features allow us to fit the form factors and decay rates calculated up to order… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.09464v2-abstract-full').style.display = 'inline'; document.getElementById('1808.09464v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.09464v2-abstract-full" style="display: none;"> The heavy quark effective theory makes model independent predictions for semileptonic $螞_b \to 螞_c$ decays in terms of a small set of parameters. No subleading Isgur-Wise function occurs at order $螞_{\rm QCD}/m_{c,b}$, and only two sub-subleading functions enter at order $螞_{\rm QCD}^2/m_c^2$. These features allow us to fit the form factors and decay rates calculated up to order $螞_{\rm QCD}^2/m_c^2$ to LHCb data and lattice QCD calculations. We derive a significantly more precise standard model prediction for the ratio ${\cal B}(螞_b\to 螞_c 蟿\bar谓) / {\cal B}(螞_b\to 螞_c 渭\bar谓)$ than prior results, and find the expansion in $螞_{\rm QCD}/m_c$ well-behaved, addressing a long-standing question. Our results allow more precise and reliable calculations of $螞_b\to 螞_c\ell\bar谓$ rates, and are systematically improvable with better data on the $渭$ (or $e$) modes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.09464v2-abstract-full').style.display = 'none'; document.getElementById('1808.09464v2-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 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </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">5 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 202001 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1610.02045">arXiv:1610.02045</a> <span> [<a href="https://arxiv.org/pdf/1610.02045">pdf</a>, <a href="https://arxiv.org/format/1610.02045">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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(2017)083">10.1007/JHEP01(2017)083 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Physics in the Visible Final States of $B\to D^{(*)}蟿谓$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">Michele Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Robinson%2C+D+J">Dean J. Robinson</a> </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="1610.02045v2-abstract-short" style="display: inline;"> We derive compact expressions for the helicity amplitudes of the many-body $B \to D^{(*)}(\to DY)蟿(\to X谓)谓$ decays, specifically for $X = \ell 谓$ or $蟺$ and $Y = 蟺$ or $纬$. We include contributions from all ten possible new physics four-Fermi operators with arbitrary couplings. Our results capture interference effects in the full phase space of the visible $蟿$ and $D^*$ decay products which are m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.02045v2-abstract-full').style.display = 'inline'; document.getElementById('1610.02045v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1610.02045v2-abstract-full" style="display: none;"> We derive compact expressions for the helicity amplitudes of the many-body $B \to D^{(*)}(\to DY)蟿(\to X谓)谓$ decays, specifically for $X = \ell 谓$ or $蟺$ and $Y = 蟺$ or $纬$. We include contributions from all ten possible new physics four-Fermi operators with arbitrary couplings. Our results capture interference effects in the full phase space of the visible $蟿$ and $D^*$ decay products which are missed in analyses that treat the $蟿$ or $D^*$ or both as stable. The $蟿$ interference effects are sizable, formally of order $m_蟿/m_B$ for the standard model, and may be of order unity in the presence of new physics. Treating interference correctly is essential when considering kinematic distributions of the $蟿$ or $D^*$ decay products, and when including experimentally unavoidable phase space cuts. Our amplitude-level results also allow for efficient exploration of new physics effects in the fully differential phase space, by enabling experiments to perform such studies on fully simulated Monte Carlo datasets via efficient event reweighing. As an example, we explore a class of new physics interactions that can fit the observed $R(D^{(*)})$ ratios, and show that analyses including more differential kinematic information can provide greater discriminating power for new physics, than single kinematic variables alone. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.02045v2-abstract-full').style.display = 'none'; document.getElementById('1610.02045v2-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 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2016. </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">32 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.06671">arXiv:1507.06671</a> <span> [<a href="https://arxiv.org/pdf/1507.06671">pdf</a>, <a href="https://arxiv.org/format/1507.06671">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.115.251801">10.1103/PhysRevLett.115.251801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Towards more precise determinations of the CKM phase $尾$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Robinson%2C+D+J">Dean J. Robinson</a> </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="1507.06671v2-abstract-short" style="display: inline;"> We derive a new flavor symmetry relation for the determination of the weak phase $尾=蠁_1$ from time-dependent CP asymmetries and $B \to J/蠄P$ decay rates. In this relation, the contributions to $\sin2尾$ proportional to $V_{ub}$ are parametrically suppressed compared to the contributions in the $B \to J/蠄K^0$ time-dependent CP asymmetry alone. This relation uses only $SU(3)$ flavor symmetry, and doe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.06671v2-abstract-full').style.display = 'inline'; document.getElementById('1507.06671v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.06671v2-abstract-full" style="display: none;"> We derive a new flavor symmetry relation for the determination of the weak phase $尾=蠁_1$ from time-dependent CP asymmetries and $B \to J/蠄P$ decay rates. In this relation, the contributions to $\sin2尾$ proportional to $V_{ub}$ are parametrically suppressed compared to the contributions in the $B \to J/蠄K^0$ time-dependent CP asymmetry alone. This relation uses only $SU(3)$ flavor symmetry, and does not require further diagrammatic assumptions. The current data either fluctuate at the $2蟽$ level from expectations, or may hint at effects of unexpected magnitude from contributions proportional to $V_{ub}$ or from isospin breaking. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.06671v2-abstract-full').style.display = 'none'; document.getElementById('1507.06671v2-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> 29 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </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">5 pages, 1 figure, published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 115, 251801 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1506.03484">arXiv:1506.03484</a> <span> [<a href="https://arxiv.org/pdf/1506.03484">pdf</a>, <a href="https://arxiv.org/format/1506.03484">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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(2015)027">10.1007/JHEP10(2015)027 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Vector-Like Fermions and Flavor Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ishiwata%2C+K">Koji Ishiwata</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Wise%2C+M+B">Mark B. Wise</a> </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="1506.03484v2-abstract-short" style="display: inline;"> We study renormalizable extensions of the standard model that contain vector-like fermions in a (single) complex representation of the standard model gauge group. There are 11 models where the vector-like fermions Yukawa couple to the standard model fermions via the Higgs field. These models do not introduce additional fine- tunings. They can lead to, and are constrained by, a number of different… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.03484v2-abstract-full').style.display = 'inline'; document.getElementById('1506.03484v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1506.03484v2-abstract-full" style="display: none;"> We study renormalizable extensions of the standard model that contain vector-like fermions in a (single) complex representation of the standard model gauge group. There are 11 models where the vector-like fermions Yukawa couple to the standard model fermions via the Higgs field. These models do not introduce additional fine- tunings. They can lead to, and are constrained by, a number of different flavor- changing processes involving leptons and quarks, as well as direct searches. An interesting feature of the models with strongly interacting vector-like fermions is that constraints from neutral meson mixings (apart from CP violation in neutral kaon mixing) are not sensitive to higher scales than other flavor-changing neutral-current processes. We identify order 1/(4 pi M)^2 (where M is the vector-like fermion mass) one-loop contributions to the coefficients of the four-quark operators for meson mixing, that are not suppressed by standard model quark masses and/or mixing angles. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.03484v2-abstract-full').style.display = 'none'; document.getElementById('1506.03484v2-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 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 June, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2015. </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">25 pages, 3 figures, several issues are added, accepted in JHEP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CALT-TH 2015-029, KANAZAWA-15-07 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1408.2516">arXiv:1408.2516</a> <span> [<a href="https://arxiv.org/pdf/1408.2516">pdf</a>, <a href="https://arxiv.org/format/1408.2516">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.90.094003">10.1103/PhysRevD.90.094003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New ways to search for right-handed current in B -> rho ell nu decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Turczyk%2C+S">Sascha Turczyk</a> </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="1408.2516v1-abstract-short" style="display: inline;"> An interesting possibility to ease the tension between various determinations of |V_{ub}| is to allow a small right-handed contribution to the standard model weak current. The present bounds on such a contribution are fairly weak. We propose new ways to search for such a beyond standard model contribution in semileptonic B -> rho ell nu decay. Generalized asymmetries in one, two, or three angular… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.2516v1-abstract-full').style.display = 'inline'; document.getElementById('1408.2516v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1408.2516v1-abstract-full" style="display: none;"> An interesting possibility to ease the tension between various determinations of |V_{ub}| is to allow a small right-handed contribution to the standard model weak current. The present bounds on such a contribution are fairly weak. We propose new ways to search for such a beyond standard model contribution in semileptonic B -> rho ell nu decay. Generalized asymmetries in one, two, or three angular variables are introduced as discriminators, which do not require an unbinned analysis of the fully differential distribution, and a detailed study of the corresponding theoretical uncertainties is performed. A discussion on how binned measurements can access all the angular information follows, which may be useful in both B -> rho ell nu and B -> K^* ell^+ ell^-, and possibly essential in the former decay due to backgrounds. The achievable sensitivity from the available BaBar and Belle data sets is explored, as well as from the anticipated 50 ab^{-1} Belle II data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.2516v1-abstract-full').style.display = 'none'; document.getElementById('1408.2516v1-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 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2014. </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">17 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MITP/14-054 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 094003 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1401.6077">arXiv:1401.6077</a> <span> [<a href="https://arxiv.org/pdf/1401.6077">pdf</a>, <a href="https://arxiv.org/format/1401.6077">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="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> </div> <p class="title is-5 mathjax"> Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 2: Intensity Frontier </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Hewett%2C+J+L">J. L. Hewett</a>, <a href="/search/hep-ex?searchtype=author&query=Weerts%2C+H">H. Weerts</a>, <a href="/search/hep-ex?searchtype=author&query=Babu%2C+K+S">K. S. Babu</a>, <a href="/search/hep-ex?searchtype=author&query=Butler%2C+J">J. Butler</a>, <a href="/search/hep-ex?searchtype=author&query=Casey%2C+B">B. Casey</a>, <a href="/search/hep-ex?searchtype=author&query=de+Gouvea%2C+A">A. de Gouvea</a>, <a href="/search/hep-ex?searchtype=author&query=Essig%2C+R">R. Essig</a>, <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Y. Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Hitlin%2C+D">D. Hitlin</a>, <a href="/search/hep-ex?searchtype=author&query=Jaros%2C+J">J. Jaros</a>, <a href="/search/hep-ex?searchtype=author&query=Kearns%2C+E">E. Kearns</a>, <a href="/search/hep-ex?searchtype=author&query=Kumar%2C+K">K. Kumar</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Lu%2C+Z+-">Z. -T. Lu</a>, <a href="/search/hep-ex?searchtype=author&query=Pitts%2C+K">K. Pitts</a>, <a href="/search/hep-ex?searchtype=author&query=Ramsey-Musolf%2C+M">M. Ramsey-Musolf</a>, <a href="/search/hep-ex?searchtype=author&query=Ritchie%2C+J">J. Ritchie</a>, <a href="/search/hep-ex?searchtype=author&query=Scholberg%2C+K">K. Scholberg</a>, <a href="/search/hep-ex?searchtype=author&query=Wester%2C+W">W. Wester</a>, <a href="/search/hep-ex?searchtype=author&query=Zeller%2C+G+P">G. P. Zeller</a> </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="1401.6077v1-abstract-short" style="display: inline;"> These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 2, on the Intensity Frontier, discusses the program of research with high-intensity beams and rare processes. This area includes experiments on neutrinos, proton decay, charged-lepton and quark weak interact… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.6077v1-abstract-full').style.display = 'inline'; document.getElementById('1401.6077v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1401.6077v1-abstract-full" style="display: none;"> These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 2, on the Intensity Frontier, discusses the program of research with high-intensity beams and rare processes. This area includes experiments on neutrinos, proton decay, charged-lepton and quark weak interactions, atomic and nuclear probes of fundamental symmetries, and searches for new, light, weakly-interacting particles. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.6077v1-abstract-full').style.display = 'none'; document.getElementById('1401.6077v1-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> 23 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2014. </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">50 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.1076">arXiv:1311.1076</a> <span> [<a href="https://arxiv.org/pdf/1311.1076">pdf</a>, <a href="https://arxiv.org/format/1311.1076">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="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Report of the Quark Flavor Physics Working Group </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Butler%2C+J+N">J. N. Butler</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Ritchie%2C+J+L">J. L. Ritchie</a>, <a href="/search/hep-ex?searchtype=author&query=Cirigliano%2C+V">V. Cirigliano</a>, <a href="/search/hep-ex?searchtype=author&query=Kettell%2C+S">S. Kettell</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R">R. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Petrov%2C+A+A">A. A. Petrov</a>, <a href="/search/hep-ex?searchtype=author&query=Schwartz%2C+A">A. Schwartz</a>, <a href="/search/hep-ex?searchtype=author&query=Skwarnicki%2C+T">T. Skwarnicki</a>, <a href="/search/hep-ex?searchtype=author&query=Zupan%2C+J">J. Zupan</a>, <a href="/search/hep-ex?searchtype=author&query=Christ%2C+N">N. Christ</a>, <a href="/search/hep-ex?searchtype=author&query=Sharpe%2C+S+R">S. R. Sharpe</a>, <a href="/search/hep-ex?searchtype=author&query=Van+de+Water%2C+R+S">R. S. Van de Water</a>, <a href="/search/hep-ex?searchtype=author&query=Altmannshofer%2C+W">W. Altmannshofer</a>, <a href="/search/hep-ex?searchtype=author&query=Arkani-Hamed%2C+N">N. Arkani-Hamed</a>, <a href="/search/hep-ex?searchtype=author&query=Artuso%2C+M">M. Artuso</a>, <a href="/search/hep-ex?searchtype=author&query=Asner%2C+D+M">D. M. Asner</a>, <a href="/search/hep-ex?searchtype=author&query=Bernard%2C+C">C. Bernard</a>, <a href="/search/hep-ex?searchtype=author&query=Bevan%2C+A+J">A. J. Bevan</a>, <a href="/search/hep-ex?searchtype=author&query=Blanke%2C+M">M. Blanke</a>, <a href="/search/hep-ex?searchtype=author&query=Bonvicini%2C+G">G. Bonvicini</a>, <a href="/search/hep-ex?searchtype=author&query=Browder%2C+T+E">T. E. Browder</a>, <a href="/search/hep-ex?searchtype=author&query=Bryman%2C+D+A">D. A. Bryman</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Cenci%2C+R">R. Cenci</a> , et al. (59 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="1311.1076v2-abstract-short" style="display: inline;"> This report represents the response of the Intensity Frontier Quark Flavor Physics Working Group to the Snowmass charge. We summarize the current status of quark flavor physics and identify many exciting future opportunities for studying the properties of strange, charm, and bottom quarks. The ability of these studies to reveal the effects of new physics at high mass scales make them an essential… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1076v2-abstract-full').style.display = 'inline'; document.getElementById('1311.1076v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.1076v2-abstract-full" style="display: none;"> This report represents the response of the Intensity Frontier Quark Flavor Physics Working Group to the Snowmass charge. We summarize the current status of quark flavor physics and identify many exciting future opportunities for studying the properties of strange, charm, and bottom quarks. The ability of these studies to reveal the effects of new physics at high mass scales make them an essential ingredient in a well-balanced experimental particle physics program. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.1076v2-abstract-full').style.display = 'none'; document.getElementById('1311.1076v2-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 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1303.0958">arXiv:1303.0958</a> <span> [<a href="https://arxiv.org/pdf/1303.0958">pdf</a>, <a href="https://arxiv.org/format/1303.0958">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 - Phenomenology">hep-ph</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"> A model independent determination of the B -> Xs gamma decay rate </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Lacker%2C+H">Heiko Lacker</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+K">Kerstin Tackmann</a> </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="1303.0958v1-abstract-short" style="display: inline;"> The goal of the SIMBA collaboration is to provide a global fit to the available measurements of inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required hadronic parameters, most importantly the b-quark mass and th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.0958v1-abstract-full').style.display = 'inline'; document.getElementById('1303.0958v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1303.0958v1-abstract-full" style="display: none;"> The goal of the SIMBA collaboration is to provide a global fit to the available measurements of inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required hadronic parameters, most importantly the b-quark mass and the b-quark distribution function in the B-meson, called the shape function. In this talk, the current status on the model-independent determination of the shape function and |C7^\incl Vtb Vts*|, which parametrizes the total B -> Xs gamma rate, from a global fit to the available B -> X_s gamma measurements from Babar and Belle is presented. In particular, the theoretical uncertainties originating from variations of the different factorization scales are evaluated. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.0958v1-abstract-full').style.display = 'none'; document.getElementById('1303.0958v1-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> 5 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2013. </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">Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MIT-CTP 4429, DESY 13-019 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1208.3355">arXiv:1208.3355</a> <span> [<a href="https://arxiv.org/pdf/1208.3355">pdf</a>, <a href="https://arxiv.org/format/1208.3355">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="High Energy Physics - Phenomenology">hep-ph</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/s10052-013-2373-2">10.1140/epjc/s10052-013-2373-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Implications of LHCb measurements and future prospects </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=Bharucha%2C+A">A. Bharucha</a>, <a href="/search/hep-ex?searchtype=author&query=Bigi%2C+I+I">I. I. Bigi</a>, <a href="/search/hep-ex?searchtype=author&query=Bobeth%2C+C">C. Bobeth</a>, <a href="/search/hep-ex?searchtype=author&query=Bobrowski%2C+M">M. Bobrowski</a>, <a href="/search/hep-ex?searchtype=author&query=Brod%2C+J">J. Brod</a>, <a href="/search/hep-ex?searchtype=author&query=Buras%2C+A+J">A. J. Buras</a>, <a href="/search/hep-ex?searchtype=author&query=Davies%2C+C+T+H">C. T. H. Davies</a>, <a href="/search/hep-ex?searchtype=author&query=Datta%2C+A">A. Datta</a>, <a href="/search/hep-ex?searchtype=author&query=Delaunay%2C+C">C. Delaunay</a>, <a href="/search/hep-ex?searchtype=author&query=Descotes-Genon%2C+S">S. Descotes-Genon</a>, <a href="/search/hep-ex?searchtype=author&query=Ellis%2C+J">J. Ellis</a>, <a href="/search/hep-ex?searchtype=author&query=Feldmann%2C+T">T. Feldmann</a>, <a href="/search/hep-ex?searchtype=author&query=Fleischer%2C+R">R. Fleischer</a>, <a href="/search/hep-ex?searchtype=author&query=Gedalia%2C+O">O. Gedalia</a>, <a href="/search/hep-ex?searchtype=author&query=Girrbach%2C+J">J. Girrbach</a>, <a href="/search/hep-ex?searchtype=author&query=Guadagnoli%2C+D">D. Guadagnoli</a>, <a href="/search/hep-ex?searchtype=author&query=Hiller%2C+G">G. Hiller</a>, <a href="/search/hep-ex?searchtype=author&query=Hochberg%2C+Y">Y. Hochberg</a>, <a href="/search/hep-ex?searchtype=author&query=Hurth%2C+T">T. Hurth</a>, <a href="/search/hep-ex?searchtype=author&query=Isidori%2C+G">G. Isidori</a>, <a href="/search/hep-ex?searchtype=author&query=Jaeger%2C+S">S. Jaeger</a>, <a href="/search/hep-ex?searchtype=author&query=Jung%2C+M">M. Jung</a>, <a href="/search/hep-ex?searchtype=author&query=Kagan%2C+A">A. Kagan</a>, <a href="/search/hep-ex?searchtype=author&query=Kamenik%2C+J+F">J. F. Kamenik</a> , et al. (741 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="1208.3355v3-abstract-short" style="display: inline;"> During 2011 the LHCb experiment at CERN collected 1.0 fb-1 of sqrt{s} = 7 TeV pp collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples of heavy flavoured hadrons. The first results from LHCb have made a significant impact on the flavour physics landscape and have definitively proved the concept of a dedicated experiment in the forward region a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.3355v3-abstract-full').style.display = 'inline'; document.getElementById('1208.3355v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1208.3355v3-abstract-full" style="display: none;"> During 2011 the LHCb experiment at CERN collected 1.0 fb-1 of sqrt{s} = 7 TeV pp collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples of heavy flavoured hadrons. The first results from LHCb have made a significant impact on the flavour physics landscape and have definitively proved the concept of a dedicated experiment in the forward region at a hadron collider. This document discusses the implications of these first measurements on classes of extensions to the Standard Model, bearing in mind the interplay with the results of searches for on-shell production of new particles at ATLAS and CMS. The physics potential of an upgrade to the LHCb detector, which would allow an order of magnitude more data to be collected, is emphasised. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1208.3355v3-abstract-full').style.display = 'none'; document.getElementById('1208.3355v3-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 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 August, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2012. </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">v2: 180 pages; many figures. Updated for submission to EPJC; v3: published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PUB-2012-006; LHCb-PAPER-2012-031; CERN-PH-EP-2012-334 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> EPJ C 73 (2013) 2373 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.2671">arXiv:1205.2671</a> <span> [<a href="https://arxiv.org/pdf/1205.2671">pdf</a>, <a href="https://arxiv.org/format/1205.2671">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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Fundamental Physics at the Intensity Frontier </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Hewett%2C+J+L">J. L. Hewett</a>, <a href="/search/hep-ex?searchtype=author&query=Weerts%2C+H">H. Weerts</a>, <a href="/search/hep-ex?searchtype=author&query=Brock%2C+R">R. Brock</a>, <a href="/search/hep-ex?searchtype=author&query=Butler%2C+J+N">J. N. Butler</a>, <a href="/search/hep-ex?searchtype=author&query=Casey%2C+B+C+K">B. C. K. Casey</a>, <a href="/search/hep-ex?searchtype=author&query=Collar%2C+J">J. Collar</a>, <a href="/search/hep-ex?searchtype=author&query=de+Gouvea%2C+A">A. de Gouvea</a>, <a href="/search/hep-ex?searchtype=author&query=Essig%2C+R">R. Essig</a>, <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Y. Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Haxton%2C+W">W. Haxton</a>, <a href="/search/hep-ex?searchtype=author&query=Jaros%2C+J+A">J. A. Jaros</a>, <a href="/search/hep-ex?searchtype=author&query=Jung%2C+C+K">C. K. Jung</a>, <a href="/search/hep-ex?searchtype=author&query=Lu%2C+Z+T">Z. T. Lu</a>, <a href="/search/hep-ex?searchtype=author&query=Pitts%2C+K">K. Pitts</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Z. Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Patterson%2C+J+R">J. R. Patterson</a>, <a href="/search/hep-ex?searchtype=author&query=Ramsey-Musolf%2C+M">M. Ramsey-Musolf</a>, <a href="/search/hep-ex?searchtype=author&query=Ritchie%2C+J+L">J. L. Ritchie</a>, <a href="/search/hep-ex?searchtype=author&query=Roodman%2C+A">A. Roodman</a>, <a href="/search/hep-ex?searchtype=author&query=Scholberg%2C+K">K. Scholberg</a>, <a href="/search/hep-ex?searchtype=author&query=Wagner%2C+C+E+M">C. E. M. Wagner</a>, <a href="/search/hep-ex?searchtype=author&query=Zeller%2C+G+P">G. P. Zeller</a>, <a href="/search/hep-ex?searchtype=author&query=Aefsky%2C+S">S. Aefsky</a>, <a href="/search/hep-ex?searchtype=author&query=Afanasev%2C+A">A. Afanasev</a>, <a href="/search/hep-ex?searchtype=author&query=Agashe%2C+K">K. Agashe</a> , et al. (443 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="1205.2671v1-abstract-short" style="display: inline;"> The Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier. Science opportunities at the intensity frontier are identified and described in the areas of heavy quarks, charged leptons, neutrinos, proton decay, new light weakly-coupled particles, and nucleons, nuclei, and atoms. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.2671v1-abstract-full" style="display: none;"> The Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier. Science opportunities at the intensity frontier are identified and described in the areas of heavy quarks, charged leptons, neutrinos, proton decay, new light weakly-coupled particles, and nucleons, nuclei, and atoms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.2671v1-abstract-full').style.display = 'none'; document.getElementById('1205.2671v1-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 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2012. </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">229 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> ANL-HEP-TR-12-25, SLAC-R-991 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1202.1834">arXiv:1202.1834</a> <span> [<a href="https://arxiv.org/pdf/1202.1834">pdf</a>, <a href="https://arxiv.org/format/1202.1834">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.85.094033">10.1103/PhysRevD.85.094033 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A proposal to solve some puzzles in semileptonic B decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Turczyk%2C+S">Sascha Turczyk</a> </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="1202.1834v3-abstract-short" style="display: inline;"> Some long-standing problems in the experimental data for semileptonic b -> c l nu decay rates have resisted attempts to resolve them, despite substantial efforts. We summarize the issues, and propose a possible resolution, which may alleviate several of these tensions simultaneously, including the "1/2 vs. 3/2 puzzle" and the composition of the inclusive decay rate in terms of exclusive channels. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1202.1834v3-abstract-full" style="display: none;"> Some long-standing problems in the experimental data for semileptonic b -> c l nu decay rates have resisted attempts to resolve them, despite substantial efforts. We summarize the issues, and propose a possible resolution, which may alleviate several of these tensions simultaneously, including the "1/2 vs. 3/2 puzzle" and the composition of the inclusive decay rate in terms of exclusive channels. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.1834v3-abstract-full').style.display = 'none'; document.getElementById('1202.1834v3-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> 23 June, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 February, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2012. </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">5 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev. D85 (2012) 094033 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.4987">arXiv:1111.4987</a> <span> [<a href="https://arxiv.org/pdf/1111.4987">pdf</a>, <a href="https://arxiv.org/format/1111.4987">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.physletb.2012.03.046">10.1016/j.physletb.2012.03.046 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Implications of the LHCb Evidence for Charm CP Violation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Isidori%2C+G">Gino Isidori</a>, <a href="/search/hep-ex?searchtype=author&query=Kamenik%2C+J+F">Jernej F. Kamenik</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Perez%2C+G">Gilad Perez</a> </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="1111.4987v2-abstract-short" style="display: inline;"> The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate qualitatively the magnitude of the non-SM tree level operators required to generate the observed cent… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.4987v2-abstract-full').style.display = 'inline'; document.getElementById('1111.4987v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.4987v2-abstract-full" style="display: none;"> The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate qualitatively the magnitude of the non-SM tree level operators required to generate the observed central value. In the context of an effective theory, we list the operators that can give rise to the measured CP violation and investigate constraints on them from other processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.4987v2-abstract-full').style.display = 'none'; document.getElementById('1111.4987v2-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 March, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </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">7 pages, 3 figures; minor corrections, conclusions unchanged</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1108.0959">arXiv:1108.0959</a> <span> [<a href="https://arxiv.org/pdf/1108.0959">pdf</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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</span> </div> </div> <p class="title is-5 mathjax"> Deep Underground Science and Engineering Laboratory - Preliminary Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Lesko%2C+K+T">Kevin T. Lesko</a>, <a href="/search/hep-ex?searchtype=author&query=Acheson%2C+S">Steven Acheson</a>, <a href="/search/hep-ex?searchtype=author&query=Alonso%2C+J">Jose Alonso</a>, <a href="/search/hep-ex?searchtype=author&query=Bauer%2C+P">Paul Bauer</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y">Yuen-Dat Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chinowsky%2C+W">William Chinowsky</a>, <a href="/search/hep-ex?searchtype=author&query=Dangermond%2C+S">Steve Dangermond</a>, <a href="/search/hep-ex?searchtype=author&query=Detwiler%2C+J+A">Jason A. Detwiler</a>, <a href="/search/hep-ex?searchtype=author&query=De+Vries%2C+S">Syd De Vries</a>, <a href="/search/hep-ex?searchtype=author&query=DiGennaro%2C+R">Richard DiGennaro</a>, <a href="/search/hep-ex?searchtype=author&query=Exter%2C+E">Elizabeth Exter</a>, <a href="/search/hep-ex?searchtype=author&query=Fernandez%2C+F+B">Felix B. Fernandez</a>, <a href="/search/hep-ex?searchtype=author&query=Freer%2C+E+L">Elizabeth L. Freer</a>, <a href="/search/hep-ex?searchtype=author&query=Gilchriese%2C+M+G+D">Murdock G. D. Gilchriese</a>, <a href="/search/hep-ex?searchtype=author&query=Goldschmidt%2C+A">Azriel Goldschmidt</a>, <a href="/search/hep-ex?searchtype=author&query=Grammann%2C+B">Ben Grammann</a>, <a href="/search/hep-ex?searchtype=author&query=Griffing%2C+W">William Griffing</a>, <a href="/search/hep-ex?searchtype=author&query=Harlan%2C+B">Bill Harlan</a>, <a href="/search/hep-ex?searchtype=author&query=Haxton%2C+W+C">Wick C. Haxton</a>, <a href="/search/hep-ex?searchtype=author&query=Headley%2C+M">Michael Headley</a>, <a href="/search/hep-ex?searchtype=author&query=Heise%2C+J">Jaret Heise</a>, <a href="/search/hep-ex?searchtype=author&query=Hladysz%2C+Z">Zbigniew Hladysz</a>, <a href="/search/hep-ex?searchtype=author&query=Jacobs%2C+D">Dianna Jacobs</a>, <a href="/search/hep-ex?searchtype=author&query=Johnson%2C+M">Michael Johnson</a>, <a href="/search/hep-ex?searchtype=author&query=Kadel%2C+R">Richard Kadel</a> , et al. (26 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="1108.0959v1-abstract-short" style="display: inline;"> The DUSEL Project has produced the Preliminary Design of the Deep Underground Science and Engineering Laboratory (DUSEL) at the rehabilitated former Homestake mine in South Dakota. The Facility design calls for, on the surface, two new buildings - one a visitor and education center, the other an experiment assembly hall - and multiple repurposed existing buildings. To support underground research… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.0959v1-abstract-full').style.display = 'inline'; document.getElementById('1108.0959v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1108.0959v1-abstract-full" style="display: none;"> The DUSEL Project has produced the Preliminary Design of the Deep Underground Science and Engineering Laboratory (DUSEL) at the rehabilitated former Homestake mine in South Dakota. The Facility design calls for, on the surface, two new buildings - one a visitor and education center, the other an experiment assembly hall - and multiple repurposed existing buildings. To support underground research activities, the design includes two laboratory modules and additional spaces at a level 4,850 feet underground for physics, biology, engineering, and Earth science experiments. On the same level, the design includes a Department of Energy-shepherded Large Cavity supporting the Long Baseline Neutrino Experiment. At the 7,400-feet level, the design incorporates one laboratory module and additional spaces for physics and Earth science efforts. With input from some 25 science and engineering collaborations, the Project has designed critical experimental space and infrastructure needs, including space for a suite of multidisciplinary experiments in a laboratory whose projected life span is at least 30 years. From these experiments, a critical suite of experiments is outlined, whose construction will be funded along with the facility. The Facility design permits expansion and evolution, as may be driven by future science requirements, and enables participation by other agencies. The design leverages South Dakota's substantial investment in facility infrastructure, risk retirement, and operation of its Sanford Laboratory at Homestake. The Project is planning education and outreach programs, and has initiated efforts to establish regional partnerships with underserved populations - regional American Indian and rural populations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.0959v1-abstract-full').style.display = 'none'; document.getElementById('1108.0959v1-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 August, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2011. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.4090">arXiv:1107.4090</a> <span> [<a href="https://arxiv.org/pdf/1107.4090">pdf</a>, <a href="https://arxiv.org/ps/1107.4090">ps</a>, <a href="https://arxiv.org/format/1107.4090">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.84.071504">10.1103/PhysRevD.84.071504 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Comment on measuring the t-tbar forward-backward asymmetry at ATLAS and CMS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Arguin%2C+J">Jean-Fran莽ois Arguin</a>, <a href="/search/hep-ex?searchtype=author&query=Freytsis%2C+M">Marat Freytsis</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="1107.4090v2-abstract-short" style="display: inline;"> We suggest a new possibility for ATLAS and CMS to explore the t-tbar forward-backward asymmetry measured at the Tevatron, by attempting to reconstruct t-tbar events, with one of the tops decaying semileptonically in the central region (|畏| < 2.5) and the other decaying hadronically in the forward region (|畏| > 2.5). For several models which give comparable Tevatron signals, we study the charge asy… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4090v2-abstract-full').style.display = 'inline'; document.getElementById('1107.4090v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.4090v2-abstract-full" style="display: none;"> We suggest a new possibility for ATLAS and CMS to explore the t-tbar forward-backward asymmetry measured at the Tevatron, by attempting to reconstruct t-tbar events, with one of the tops decaying semileptonically in the central region (|畏| < 2.5) and the other decaying hadronically in the forward region (|畏| > 2.5). For several models which give comparable Tevatron signals, we study the charge asymmetry at the LHC as a function of cuts on |畏| and on the t-tbar invariant mass, m_{t-tbar}. We show that there is an interesting complementarity between cuts on |畏| and m_{t-tbar} to suppress the dominant and symmetric gg -> t-tbar rate, and different combinations of cuts enhance the distinguishing power between models. This complementarity is likely to hold in other new physics scenarios as well, which affect the t-tbar cross section, so it motivates extending t-tbar reconstruction to higher |畏|. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.4090v2-abstract-full').style.display = 'none'; document.getElementById('1107.4090v2-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> 5 December, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </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">6 pages, 3 figures, 3 tables, v2: to match version appearing in PRD, resolution in figures improved</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev. D84 (2011) 071504 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1101.3310">arXiv:1101.3310</a> <span> [<a href="https://arxiv.org/pdf/1101.3310">pdf</a>, <a href="https://arxiv.org/ps/1101.3310">ps</a>, <a href="https://arxiv.org/format/1101.3310">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 - Phenomenology">hep-ph</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"> Status of SIMBA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Lacker%2C+H">Heiko Lacker</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+K">Kerstin Tackmann</a> </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="1101.3310v1-abstract-short" style="display: inline;"> The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required input parameters, most importantly the b-quark mass and the b-quark d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.3310v1-abstract-full').style.display = 'inline'; document.getElementById('1101.3310v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1101.3310v1-abstract-full" style="display: none;"> The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required input parameters, most importantly the b-quark mass and the b-quark distribution function in the B-meson, called the shape function. This strategy is analogous to the determination of |Vcb| from global fits to inclusive B -> X_c l nu decays. In this talk, we present preliminary results for the shape function and |C_7^incl Vtb Vts^*|, which parametrizes the total B -> X_s gamma rate, from a global fit to the available B -> X_s gamma measurements from BABAR and Belle. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.3310v1-abstract-full').style.display = 'none'; document.getElementById('1101.3310v1-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 January, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2011. </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">7 pages, 3 figures, Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1011.5838">arXiv:1011.5838</a> <span> [<a href="https://arxiv.org/pdf/1011.5838">pdf</a>, <a href="https://arxiv.org/format/1011.5838">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 - Phenomenology">hep-ph</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"> Towards a global fit to extract the B->Xs gamma decay rate and Vub </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bernlochner%2C+F+U">Florian U. Bernlochner</a>, <a href="/search/hep-ex?searchtype=author&query=Lacker%2C+H">Heiko Lacker</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+K">Kerstin Tackmann</a> </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="1011.5838v1-abstract-short" style="display: inline;"> The total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.5838v1-abstract-full').style.display = 'inline'; document.getElementById('1011.5838v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.5838v1-abstract-full" style="display: none;"> The total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the shape function. We implement a new model-independent framework for the shape function with reliable uncertainties based on an expansion in a suitable set of basis functions. We present the current status of a global fit to BaBar and Belle data to extract the shape function and the B->Xs gamma decay rate. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.5838v1-abstract-full').style.display = 'none'; document.getElementById('1011.5838v1-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> 26 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </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">5 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS ICHEP2010:229,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1006.0432">arXiv:1006.0432</a> <span> [<a href="https://arxiv.org/pdf/1006.0432">pdf</a>, <a href="https://arxiv.org/format/1006.0432">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.105.131601">10.1103/PhysRevLett.105.131601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Implications of the dimuon CP asymmetry in B_{d,s} decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">Michele Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Perez%2C+G">Gilad Perez</a>, <a href="/search/hep-ex?searchtype=author&query=Zupan%2C+J">Jure Zupan</a> </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="1006.0432v2-abstract-short" style="display: inline;"> The D0 Collaboration reported a 3.2sigma deviation from the standard model prediction in the like-sign dimuon asymmetry. Assuming that new physics contributes only to B_{d,s} mixing, we show that the data can be analyzed without using the theoretical calculation of 螖螕_s, allowing for robust interpretations. We find that this framework gives a good fit to all measurements, including the recent CDF… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.0432v2-abstract-full').style.display = 'inline'; document.getElementById('1006.0432v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1006.0432v2-abstract-full" style="display: none;"> The D0 Collaboration reported a 3.2sigma deviation from the standard model prediction in the like-sign dimuon asymmetry. Assuming that new physics contributes only to B_{d,s} mixing, we show that the data can be analyzed without using the theoretical calculation of 螖螕_s, allowing for robust interpretations. We find that this framework gives a good fit to all measurements, including the recent CDF S_{蠄蠁} result. The data allow universal new physics with similar contributions relative to the SM in the B_d and B_s systems, but favors a larger deviation in B_s than in B_d mixing. The general minimal flavor violation framework with flavor diagonal CP violating phases can account for the former and remarkably even for the latter case. This observation makes it simpler to speculate about which extensions with general flavor structure may also fit the data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.0432v2-abstract-full').style.display = 'none'; document.getElementById('1006.0432v2-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 September, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2010. </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">5 pages, 4 figures; final version accepted in PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.105:131601,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0612156">arXiv:hep-ph/0612156</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0612156">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0612156">ps</a>, <a href="https://arxiv.org/format/hep-ph/0612156">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.75.034016">10.1103/PhysRevD.75.034016 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extracting short distance information from b -> s l+ l- effectively </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Lee%2C+K+S+M">Keith S. M. Lee</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a> </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="hep-ph/0612156v3-abstract-short" style="display: inline;"> We point out that in inclusive B -> Xs l+ l- decay an angular decomposition provides a third (q^2 dependent) observable sensitive to a different combination of Wilson coefficients than the rate and the forward-backward asymmetry. Since a precise measurement of q^2 dependence requires large data sets, it is important to consider the data integrated over regions of q^2. We develop a strategy to ex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0612156v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0612156v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0612156v3-abstract-full" style="display: none;"> We point out that in inclusive B -> Xs l+ l- decay an angular decomposition provides a third (q^2 dependent) observable sensitive to a different combination of Wilson coefficients than the rate and the forward-backward asymmetry. Since a precise measurement of q^2 dependence requires large data sets, it is important to consider the data integrated over regions of q^2. We develop a strategy to extract all measurable Wilson coefficients in B -> Xs l+ l- from a few simple integrated rates in the low q^2 region. A similar decomposition in B -> K* l+ l-, together with the B -> K* 纬rate, also provides a determination of the Wilson coefficients, without reliance on form factor models and without having to measure the zero of the forward-backward asymmetry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0612156v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0612156v3-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 February, 2007; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 December, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2006. </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">13 pages, 3 figures, v2: minor improvements in text, references added, v3: journal version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Caltech MAP-330, LBNL-62077, MIT-CTP 3793 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D75:034016,2007 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0607001">arXiv:hep-ph/0607001</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0607001">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0607001">ps</a>, <a href="https://arxiv.org/format/hep-ph/0607001">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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 Theory">nucl-th</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.77.054006">10.1103/PhysRevD.77.054006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Power Corrections in Charmless Nonleptonic B-Decays: Annihilation is Factorizable and Real </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Arnesen%2C+C+M">Christian M. Arnesen</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Rothstein%2C+I+Z">Ira Z. Rothstein</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a> </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="hep-ph/0607001v3-abstract-short" style="display: inline;"> We classify LambdaQCD/mb power corrections to nonleptonic B-> M1 M2 decays, where M1 and M2 are charmless non-isosinglet mesons. Using recent developments in soft-collinear effective theory, we prove that the leading contributions to annihilation amplitudes of O[alphas(mb) LambdaQCD/mb] are real. The leading annihilation amplitudes depend on twist-2 and twist-3 three parton distributions. A comp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0607001v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0607001v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0607001v3-abstract-full" style="display: none;"> We classify LambdaQCD/mb power corrections to nonleptonic B-> M1 M2 decays, where M1 and M2 are charmless non-isosinglet mesons. Using recent developments in soft-collinear effective theory, we prove that the leading contributions to annihilation amplitudes of O[alphas(mb) LambdaQCD/mb] are real. The leading annihilation amplitudes depend on twist-2 and twist-3 three parton distributions. A complex nonperturbative parameter from annihilation first appears at O[alphas^2(sqrt{Lambda mb}) LambdaQCD/mb]. ``Chirally enhanced'' contributions are also factorizable and real at lowest order. Thus, incalculable strong phases are suppressed in annihilation amplitudes, unless the alphas(sqrt{Lambda mb}) expansion breaks down. Modeling the distribution functions, we find that (11 +- 9)% and (15 +- 11)% of the absolute value of the measured B-> K- pi+ and B-> K- K0 penguin amplitudes come from annihilation. This is consistent with the expected size of power corrections. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0607001v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0607001v3-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> 23 September, 2007; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 July, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2006. </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">35 pages, 3 figs, discussion of the 3-body annihilation in hep-ph/0611356 and clarifying comments added</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MIT-CTP 3751, LBNL-60196, CMU-HEP-06-08 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D77:054006,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0604112">arXiv:hep-ph/0604112</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0604112">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0604112">ps</a>, <a href="https://arxiv.org/format/hep-ph/0604112">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.97.101801">10.1103/PhysRevLett.97.101801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Implications of the measurement of the B^0_s-\bar B^0_s mass difference </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Papucci%2C+M">Michele Papucci</a>, <a href="/search/hep-ex?searchtype=author&query=Perez%2C+G">Gilad Perez</a> </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="hep-ph/0604112v3-abstract-short" style="display: inline;"> We analyze the significant new model independent constraints on extensions of the standard model (SM) that follow from the recent measurements of the B^0_s-\bar B^0_s mass difference. The time-dependent CP asymmetry in B_s -> 蠄蠁, S_{蠄蠁}, will be measured with good precision in the first year of LHC data taking, which will further constrain the parameter space of many extensions of the SM, in par… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0604112v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0604112v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0604112v3-abstract-full" style="display: none;"> We analyze the significant new model independent constraints on extensions of the standard model (SM) that follow from the recent measurements of the B^0_s-\bar B^0_s mass difference. The time-dependent CP asymmetry in B_s -> 蠄蠁, S_{蠄蠁}, will be measured with good precision in the first year of LHC data taking, which will further constrain the parameter space of many extensions of the SM, in particular, next-to-minimal flavor violation. The CP asymmetry in semileptonic B_s decay, A_{SL}^s, is also important to constrain these frameworks, and could give further clues to our understanding the flavor sector in the LHC era. We point out a strong correlation between S_{蠄蠁} and A_{SL}^s in a very broad class of new physics models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0604112v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0604112v3-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> 22 June, 2006; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 April, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2006. </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">4 pages and figures; typos corrected, minor numerical changes in Figs. 3 and 4; references added, 螖螕constraint and full NLO corrections included</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-59996, UCB-PTH-06/05, MIT-CTP 3734 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett 97:101801,2006 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-lat/0601022">arXiv:hep-lat/0601022</a> <span> [<a href="https://arxiv.org/pdf/hep-lat/0601022">pdf</a>, <a href="https://arxiv.org/ps/hep-lat/0601022">ps</a>, <a href="https://arxiv.org/format/hep-lat/0601022">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 - Lattice">hep-lat</span> <span class="tag is-small is-grey 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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> The CKM matrix and CP violation (in the continuum approximation) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="hep-lat/0601022v1-abstract-short" style="display: inline;"> The first part of this talk reviews recent developments in flavor physics that can be made without detailed understanding of hadronic physics, driven by the data. The error of sin(2beta) has shrunk below 5%, and the measurements of alpha and gamma have reached interesting precisions. For the first time, there are significant constraints on the deviations from the standard model in B-Bbar mixing… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-lat/0601022v1-abstract-full').style.display = 'inline'; document.getElementById('hep-lat/0601022v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-lat/0601022v1-abstract-full" style="display: none;"> The first part of this talk reviews recent developments in flavor physics that can be made without detailed understanding of hadronic physics, driven by the data. The error of sin(2beta) has shrunk below 5%, and the measurements of alpha and gamma have reached interesting precisions. For the first time, there are significant constraints on the deviations from the standard model in B-Bbar mixing and in b->s and b->d transitions. In the second part, I review some theoretical developments for exclusive semileptonic and nonleptonic B decays that have become possible using the soft-collinear effective theory. I concentrate on topics where the recent progress has model independent implications for interpreting the data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-lat/0601022v1-abstract-full').style.display = 'none'; document.getElementById('hep-lat/0601022v1-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 January, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2006. </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">Plenary talk at the XXIIIrd International Symposium on Lattice Field Theory, 25-30 July 2005, Trinity College, Dublin, Ireland</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-59133, MIT-CTP 3715 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS LAT2005:012,2006 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0512191">arXiv:hep-ph/0512191</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0512191">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0512191">ps</a>, <a href="https://arxiv.org/format/hep-ph/0512191">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.74.011501">10.1103/PhysRevD.74.011501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Universality and m_X cut effects in B -> Xs l+ l- </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Lee%2C+K+S+M">Keith S. M. Lee</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Tackmann%2C+F+J">Frank J. Tackmann</a> </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="hep-ph/0512191v2-abstract-short" style="display: inline;"> The most precise comparison between theory and experiment for the B -> Xs l+ l- rate is in the low q^2 region, but the hadronic uncertainties associated with an experimentally required cut on m_X potentially spoil the search for new physics in these decays. We show that a 10-30% reduction of d螕(B -> Xs l+ l-) / dq^2 due to the m_X cut can be accurately computed using the B -> X_s gamma shape fun… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0512191v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0512191v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0512191v2-abstract-full" style="display: none;"> The most precise comparison between theory and experiment for the B -> Xs l+ l- rate is in the low q^2 region, but the hadronic uncertainties associated with an experimentally required cut on m_X potentially spoil the search for new physics in these decays. We show that a 10-30% reduction of d螕(B -> Xs l+ l-) / dq^2 due to the m_X cut can be accurately computed using the B -> X_s gamma shape function. The effect is universal for all short distance contributions in the limit m_X^2 << m_B^2, and this universality is spoiled neither by realistic values of the m_X cut nor by alpha_s corrections. Both the differential decay rate and forward-backward asymmetry with an m_X cut are computed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0512191v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0512191v2-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 July, 2006; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 December, 2005; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2005. </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">5 pages, journal version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> MIT-CTP 3707, LBNL-59134 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D74:011501,2006 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0412019">arXiv:hep-ph/0412019</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0412019">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0412019">ps</a>, <a href="https://arxiv.org/format/hep-ph/0412019">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.71.011504">10.1103/PhysRevD.71.011504 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The photon polarization in B -> X gamma in the standard model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Grinstein%2C+B">Benjamin Grinstein</a>, <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Yuval Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Pirjol%2C+D">Dan Pirjol</a> </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="hep-ph/0412019v2-abstract-short" style="display: inline;"> The standard model prediction for the $B\to X_{s,d}纬$ decay amplitude with a right-handed photon is believed to be tiny, suppressed by $m_{s,d}/m_b$, compared to the amplitude with a left-handed photon. We show that this suppression is fictitious: in inclusive decays, the ratio of these two amplitudes is only suppressed by $g_s/(4蟺)$, and in exclusive decays by $螞_{QCD}/m_b$. The suppression is… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0412019v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0412019v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0412019v2-abstract-full" style="display: none;"> The standard model prediction for the $B\to X_{s,d}纬$ decay amplitude with a right-handed photon is believed to be tiny, suppressed by $m_{s,d}/m_b$, compared to the amplitude with a left-handed photon. We show that this suppression is fictitious: in inclusive decays, the ratio of these two amplitudes is only suppressed by $g_s/(4蟺)$, and in exclusive decays by $螞_{QCD}/m_b$. The suppression is not stronger in $B\to X_d纬$ decays than it is in $B\to X_s纬$. We estimate that the time dependent CP asymmetries in $B\to K^*纬$, $蟻纬$, $K_S蟺^0纬$, and $蟺^+蟺^-纬$ are of order 0.1 and that they have significant uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0412019v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0412019v2-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 December, 2004; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 December, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2004. </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">Clarifications in the exclusive section, references added</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> UCSD/PTH 04-21, LBNL-56648, MIT-CTP 3571 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D71:011504,2005 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0408267">arXiv:hep-ph/0408267</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0408267">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0408267">ps</a>, <a href="https://arxiv.org/format/hep-ph/0408267">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/10.1142/S0217751X05028624">10.1142/S0217751X05028624 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The CKM matrix and CP Violation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="hep-ph/0408267v3-abstract-short" style="display: inline;"> The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin(2beta) in 蠄K modes reached 5% accuracy. I discuss the implications of these, and of the possible deviations of the CP asymmetries in b->s modes from that in 蠄K. The first meaningful measurements of alpha and gamma are explained, together with their significanc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0408267v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0408267v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0408267v3-abstract-full" style="display: none;"> The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin(2beta) in 蠄K modes reached 5% accuracy. I discuss the implications of these, and of the possible deviations of the CP asymmetries in b->s modes from that in 蠄K. The first meaningful measurements of alpha and gamma are explained, together with their significance for constraining both the SM and new physics in B-Bbar mixing. I also discuss implications of recent developments in the theory of nonleptonic decays for B->pi K rates and CP asymmetries, and for the polarization in charmless B decays to two vector mesons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0408267v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0408267v3-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 October, 2004; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 August, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2004. </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">Plenary talk at 32nd International Conference on High Energy Physics (ICHEP'04), August 16-22, 2004, Beijing, China. v2: Table 5 corrected, minor changes in some averages (updated to hfag, that include correlations between S and C). v3: Figure 8 fixed, minor final changes</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-55944 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Int.J.Mod.Phys.A20:5105-5118,2005 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0312319">arXiv:hep-ph/0312319</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0312319">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0312319">ps</a>, <a href="https://arxiv.org/format/hep-ph/0312319">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.physletb.2004.02.033">10.1016/j.physletb.2004.02.033 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Predictions for nonleptonic Lambda_b and Theta_b decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Leibovich%2C+A+K">Adam K. Leibovich</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Stewart%2C+I+W">Iain W. Stewart</a>, <a href="/search/hep-ex?searchtype=author&query=Wise%2C+M+B">Mark B. Wise</a> </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="hep-ph/0312319v2-abstract-short" style="display: inline;"> We study nonleptonic Lambda_b -> Lambda_c pi, Sigma_c pi and Sigma_c^* pi decays in the limit m_b, m_c, E_pi >> Lambda_{QCD} using the soft-collinear effective theory. Here Sigma_c = Sigma_c(2455) and Sigma_c^* = Sigma_c(2520). At leading order the Lambda_b -> Sigma_c^{(*)} pi rates vanish, while the Lambda_b -> Lambda_c pi rate is related to Lambda_b -> Lambda_c\ell\bar谓, and is expected to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0312319v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0312319v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0312319v2-abstract-full" style="display: none;"> We study nonleptonic Lambda_b -> Lambda_c pi, Sigma_c pi and Sigma_c^* pi decays in the limit m_b, m_c, E_pi >> Lambda_{QCD} using the soft-collinear effective theory. Here Sigma_c = Sigma_c(2455) and Sigma_c^* = Sigma_c(2520). At leading order the Lambda_b -> Sigma_c^{(*)} pi rates vanish, while the Lambda_b -> Lambda_c pi rate is related to Lambda_b -> Lambda_c\ell\bar谓, and is expected to be larger than Gamma(B -> D^{(*)} pi). The dominant contributions to the Lambda_b -> Sigma_c^{(*)} pi rates are suppressed by Lambda_{QCD}^2/E_pi^2. We predict Gamma(Lambda_b -> Sigma_c^* pi) / Gamma(Lambda_b -> Sigma_c pi) = 2 + O[Lambda_{QCD}/m_Q, alpha_s(m_Q)], and the same ratio for Lambda_b -> Sigma_c^{(*)} rho and for Lambda_b -> Xi_c^{(',*)}K. ``Bow tie'' diagrams are shown to be suppressed. We comment on possible discovery channels for weakly decaying pentaquarks, Theta_{b,c} and their nearby heavy quark spin symmetry partners, Theta_{b,c}^*. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0312319v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0312319v2-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> 5 January, 2004; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 December, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2003. </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">12 pages, added references, corrected typos</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-54153, MIT-CTP-3453, CALT-68-2467 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B586:337-344,2004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0302031">arXiv:hep-ph/0302031</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0302031">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0302031">ps</a>, <a href="https://arxiv.org/format/hep-ph/0302031">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 - Phenomenology">hep-ph</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"> Introduction to Heavy Meson Decays and CP Asymmetries </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="hep-ph/0302031v1-abstract-short" style="display: inline;"> These lectures are intended to provide an introduction to heavy meson decays and CP violation. The first lecture contains a brief review of the standard model and how the CKM matrix and CP violation arise, mixing and CP violation in neutral meson systems, and explanation of the cleanliness of the sin(2beta) measurement. The second lecture deals with the heavy quark limit, some applications of he… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0302031v1-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0302031v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0302031v1-abstract-full" style="display: none;"> These lectures are intended to provide an introduction to heavy meson decays and CP violation. The first lecture contains a brief review of the standard model and how the CKM matrix and CP violation arise, mixing and CP violation in neutral meson systems, and explanation of the cleanliness of the sin(2beta) measurement. The second lecture deals with the heavy quark limit, some applications of heavy quark symmetry and the operator product expansion for exclusive and inclusive semileptonic B decays. The third lecture concerns with theoretically clean CP violation measurements that may become possible in the future, and some developments toward a better understanding of nonleptonic B decays. The conclusions include a subjective best buy list for the near future. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0302031v1-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0302031v1-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> 5 February, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2003. </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">~68 pages; Lectures given at the 30th SLAC Summer Institute: Secrets of the B Meson (SSI 2002), SLAC, August 5-16, 2002</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-51835 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> ECONF C020805:L02,2002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0202117">arXiv:hep-ph/0202117</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0202117">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0202117">ps</a>, <a href="https://arxiv.org/format/hep-ph/0202117">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/S0920-5632(02)01688-2">10.1016/S0920-5632(02)01688-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Physics and Future B Factories </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Nir%2C+Y">Yosef Nir</a> </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="hep-ph/0202117v1-abstract-short" style="display: inline;"> Further experimental and theoretical studies of the physics of flavor and CP violation are well motivated. Within the supersymmetric framework, higher precision measurements will allow to explore classes of models with stronger degree of universality: first, models with no universality, such as alignment or heavy first two squark generations; second, models with approximate universality, such as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0202117v1-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0202117v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0202117v1-abstract-full" style="display: none;"> Further experimental and theoretical studies of the physics of flavor and CP violation are well motivated. Within the supersymmetric framework, higher precision measurements will allow to explore classes of models with stronger degree of universality: first, models with no universality, such as alignment or heavy first two squark generations; second, models with approximate universality, such as dilaton dominance or AMSB; and finally models of exact universality, such as GMSB. A broad program, including various rare processes or CP asymmetries in B, D and K decays, will provide detailed information about viable extensions of the Standard Model. Some highlights of future B-physics experiments (the present B-factories with integrated luminosity of 0.5 ab^{-1}, hadron machines, and future high-luminosity B-factories) are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0202117v1-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0202117v1-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 February, 2002; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2002. </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">16 pages; An extended version of the contribution to the proceedings of the fifth KEK topical conference `Frontiers in Flavor Physics', KEK, Tsukuba, Japan, November 2001; Talk at the conference given by YN</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-49160, WIS/25/01-Nov-DPP </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Phys.Proc.Suppl. 111 (2002) 82-89 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0202010">arXiv:hep-ph/0202010</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0202010">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0202010">ps</a>, <a href="https://arxiv.org/format/hep-ph/0202010">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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.65.094040">10.1103/PhysRevD.65.094040 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Implications of the CP asymmetry in semileptonic B decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Laplace%2C+S">Sandrine Laplace</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Nir%2C+Y">Yosef Nir</a>, <a href="/search/hep-ex?searchtype=author&query=Perez%2C+G">Gilad Perez</a> </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="hep-ph/0202010v2-abstract-short" style="display: inline;"> Recent experimental searches for $A_{SL}$, the CP asymmetry in semileptonic B decay, have reached an accuracy of order one percent. Consequently, they give meaningful constraints on new physics. We find that cancellations between the Standard Model (SM) and new physics contributions to $B^0 - \bar B^0$ mixing cannot be as strong as was allowed prior to these measurements. The predictions for thi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0202010v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0202010v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0202010v2-abstract-full" style="display: none;"> Recent experimental searches for $A_{SL}$, the CP asymmetry in semileptonic B decay, have reached an accuracy of order one percent. Consequently, they give meaningful constraints on new physics. We find that cancellations between the Standard Model (SM) and new physics contributions to $B^0 - \bar B^0$ mixing cannot be as strong as was allowed prior to these measurements. The predictions for this asymmetry within the SM and within models of minimal flavor violation (MFV) are below the reach of present and near future measurements. Including order $m_c^2/m_b^2$ and $螞_{QCD}/m_b$ corrections we obtain the SM prediction: $-1.3 \times 10^{-3} < A_{SL} < -0.5 \times 10^{-3}$. Future measurements can exclude not only the SM, but MFV as well, if the sign of the asymmetry is opposite to the SM or if it is same-sign but much enhanced. We also comment on the CP asymmetry in semileptonic $B_s$ decay, and update the range of the angle $尾_s$ in the SM: $0.026 < \sin2尾_s < 0.048$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0202010v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0202010v2-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 April, 2002; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 February, 2002; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2002. </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">16 pages, a sign typo in eq.(11) fixed, to appear 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> LAL 02-01, LBNL-49436, WIS/4/02-Jan-DPP </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D65:094040,2002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0201071">arXiv:hep-ph/0201071</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0201071">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0201071">ps</a>, <a href="https://arxiv.org/format/hep-ph/0201071">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 - Phenomenology">hep-ph</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"> B Physics at the Tevatron: Run II and Beyond </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anikeev%2C+K">K. Anikeev</a>, <a href="/search/hep-ex?searchtype=author&query=Atwood%2C+D">D. Atwood</a>, <a href="/search/hep-ex?searchtype=author&query=Azfar%2C+F">F. Azfar</a>, <a href="/search/hep-ex?searchtype=author&query=Bailey%2C+S">S. Bailey</a>, <a href="/search/hep-ex?searchtype=author&query=Bauer%2C+C+W">C. W. Bauer</a>, <a href="/search/hep-ex?searchtype=author&query=Bell%2C+W">W. Bell</a>, <a href="/search/hep-ex?searchtype=author&query=Bodwin%2C+G">G. Bodwin</a>, <a href="/search/hep-ex?searchtype=author&query=Braaten%2C+E">E. Braaten</a>, <a href="/search/hep-ex?searchtype=author&query=Burdman%2C+G">G. Burdman</a>, <a href="/search/hep-ex?searchtype=author&query=Butler%2C+J+N">J. N. Butler</a>, <a href="/search/hep-ex?searchtype=author&query=Byrum%2C+K">K. Byrum</a>, <a href="/search/hep-ex?searchtype=author&query=Cason%2C+N">N. Cason</a>, <a href="/search/hep-ex?searchtype=author&query=Cerri%2C+A">A. Cerri</a>, <a href="/search/hep-ex?searchtype=author&query=Cheung%2C+H+W+K">H. W. K. Cheung</a>, <a href="/search/hep-ex?searchtype=author&query=Dighe%2C+A">A. Dighe</a>, <a href="/search/hep-ex?searchtype=author&query=Donati%2C+S">S. Donati</a>, <a href="/search/hep-ex?searchtype=author&query=Ellis%2C+R+K">R. K. Ellis</a>, <a href="/search/hep-ex?searchtype=author&query=Falk%2C+A">A. Falk</a>, <a href="/search/hep-ex?searchtype=author&query=Feild%2C+G">G. Feild</a>, <a href="/search/hep-ex?searchtype=author&query=Fleming%2C+S">S. Fleming</a>, <a href="/search/hep-ex?searchtype=author&query=Furic%2C+I">I. Furic</a>, <a href="/search/hep-ex?searchtype=author&query=Gardner%2C+S">S. Gardner</a>, <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Y. Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Gutierrez%2C+G">G. Gutierrez</a>, <a href="/search/hep-ex?searchtype=author&query=Hao%2C+W">W. Hao</a> , et al. (66 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="hep-ph/0201071v2-abstract-short" style="display: inline;"> This report provides a comprehensive overview of the prospects for B physics at the Tevatron. The work was carried out during a series of workshops starting in September 1999. There were four working groups: 1) CP Violation, 2) Rare and Semileptonic Decays, 3) Mixing and Lifetimes, 4) Production, Fragmentation and Spectroscopy. The report also includes introductory chapters on theoretical and ex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0201071v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0201071v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0201071v2-abstract-full" style="display: none;"> This report provides a comprehensive overview of the prospects for B physics at the Tevatron. The work was carried out during a series of workshops starting in September 1999. There were four working groups: 1) CP Violation, 2) Rare and Semileptonic Decays, 3) Mixing and Lifetimes, 4) Production, Fragmentation and Spectroscopy. The report also includes introductory chapters on theoretical and experimental tools emphasizing aspects of B physics specific to hadron colliders, as well as overviews of the CDF, D0, and BTeV detectors, and a Summary. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0201071v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0201071v2-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 February, 2002; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 January, 2002; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2002. </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">583 pages. Further information on the workshops, including transparencies, can be found at the workshop's homepage: http://www-theory.lbl.gov/Brun2/. The report is also available in 2-up http://www-theory.lbl.gov/Brun2/report/report2.ps.gz or chapter-by-chapter http://www-theory.lbl.gov/Brun2/report/</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-Pub-01/197 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0112089">arXiv:hep-ph/0112089</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0112089">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0112089">ps</a>, <a href="https://arxiv.org/format/hep-ph/0112089">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 - Phenomenology">hep-ph</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"> New Results on Flavor Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="hep-ph/0112089v2-abstract-short" style="display: inline;"> Recent progress in flavor physics is discussed. In particular, I review theoretical and experimental developments relevant for semileptonic B decays and the determination of |Vcb| and |Vub|, for exclusive rare decays, for nonleptonic b->c decays and tests of factorization, and for D meson mixing. </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0112089v2-abstract-full" style="display: none;"> Recent progress in flavor physics is discussed. In particular, I review theoretical and experimental developments relevant for semileptonic B decays and the determination of |Vcb| and |Vub|, for exclusive rare decays, for nonleptonic b->c decays and tests of factorization, and for D meson mixing. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0112089v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0112089v2-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 December, 2001; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 December, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2001. </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">Plenary talk at the International Europhysics Conference on High Energy Physics (EPS-HEP 2001), Budapest, Hungary, July 12-18, 2001; 20 pages JHEP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-49214 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0111392">arXiv:hep-ph/0111392</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0111392">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0111392">ps</a>, <a href="https://arxiv.org/format/hep-ph/0111392">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/S0370-2693(01)01517-9">10.1016/S0370-2693(01)01517-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Heavy quark symmetry in B -> D(*) ell nu spectra </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Grinstein%2C+B">Benjamin Grinstein</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a> </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="hep-ph/0111392v2-abstract-short" style="display: inline;"> We calculate heavy quark symmetry breaking in the slopes and curvatures of the $B\to D^{(*)}\ell\bar谓$ spectra at zero recoil, including the order $伪_s^2尾_0$ corrections. We point out that the theoretical uncertainties in the differences between $B\to D$ and $B\to D^*$ slopes and curvatures are smaller than in the deviations of the slopes and curvatures themselves from their infinite mass limits… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0111392v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0111392v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0111392v2-abstract-full" style="display: none;"> We calculate heavy quark symmetry breaking in the slopes and curvatures of the $B\to D^{(*)}\ell\bar谓$ spectra at zero recoil, including the order $伪_s^2尾_0$ corrections. We point out that the theoretical uncertainties in the differences between $B\to D$ and $B\to D^*$ slopes and curvatures are smaller than in the deviations of the slopes and curvatures themselves from their infinite mass limits. We find that the central values of the current experimental results for the difference of the slopes differ from our calculations when QCD sum rules are used to estimate subleading Isgur-Wise functions. A better understanding of the shapes of the $B\to D^{(*)}\ell\bar谓$ spectra may also help to reduce the error of $|V_{cb}|$ extracted from the zero recoil limit of $B\to D^*\ell\bar谓$. We argue that heavy quark symmetry requires that the same fitting procedure be used in the experimental determinations of the shape parameters and $|V_{cb}|$ from the $B\to D\ell\bar谓$ and $B\to D^{*}\ell\bar谓$ spectra. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0111392v2-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0111392v2-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 February, 2004; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 November, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2001. </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">14 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL-49173, UCSD/PTH 01-20 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B526:345-354,2002; Erratum-ibid.B601:236-237,2004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ex/0008064">arXiv:hep-ex/0008064</a> <span> [<a href="https://arxiv.org/pdf/hep-ex/0008064">pdf</a>, <a href="https://arxiv.org/ps/hep-ex/0008064">ps</a>, <a href="https://arxiv.org/format/hep-ex/0008064">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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Physics at a Neutrino Factory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Albright%2C+C">C. Albright</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+G">G. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Barger%2C+V">V. Barger</a>, <a href="/search/hep-ex?searchtype=author&query=Bernstein%2C+R">R. Bernstein</a>, <a href="/search/hep-ex?searchtype=author&query=Blazey%2C+G">G. Blazey</a>, <a href="/search/hep-ex?searchtype=author&query=Bodek%2C+A">A. Bodek</a>, <a href="/search/hep-ex?searchtype=author&query=Buckley-Geer%2C+E">E. Buckley-Geer</a>, <a href="/search/hep-ex?searchtype=author&query=Bueno%2C+A">A. Bueno</a>, <a href="/search/hep-ex?searchtype=author&query=Campanelli%2C+M">M. Campanelli</a>, <a href="/search/hep-ex?searchtype=author&query=Carey%2C+D">D. Carey</a>, <a href="/search/hep-ex?searchtype=author&query=Casper%2C+D">D. Casper</a>, <a href="/search/hep-ex?searchtype=author&query=Cervera%2C+A">A. Cervera</a>, <a href="/search/hep-ex?searchtype=author&query=Crisan%2C+C">C. Crisan</a>, <a href="/search/hep-ex?searchtype=author&query=DeJongh%2C+F">F. DeJongh</a>, <a href="/search/hep-ex?searchtype=author&query=Eichblatt%2C+S">S. Eichblatt</a>, <a href="/search/hep-ex?searchtype=author&query=Erner%2C+A">A. Erner</a>, <a href="/search/hep-ex?searchtype=author&query=Fernow%2C+R">R. Fernow</a>, <a href="/search/hep-ex?searchtype=author&query=Finley%2C+D">D. Finley</a>, <a href="/search/hep-ex?searchtype=author&query=Formaggio%2C+J">J. Formaggio</a>, <a href="/search/hep-ex?searchtype=author&query=Gallardo%2C+J">J. Gallardo</a>, <a href="/search/hep-ex?searchtype=author&query=Geer%2C+S">S. Geer</a>, <a href="/search/hep-ex?searchtype=author&query=Goodman%2C+M">M. Goodman</a>, <a href="/search/hep-ex?searchtype=author&query=Harris%2C+D">D. Harris</a>, <a href="/search/hep-ex?searchtype=author&query=Hawker%2C+E">E. Hawker</a>, <a href="/search/hep-ex?searchtype=author&query=Hill%2C+J">J. Hill</a> , et al. (41 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="hep-ex/0008064v2-abstract-short" style="display: inline;"> In response to the growing interest in building a Neutrino Factory to produce high intensity beams of electron- and muon-neutrinos and antineutrinos, in October 1999 the Fermilab Directorate initiated two six-month studies. The first study, organized by N. Holtkamp and D. Finley, was to investigate the technical feasibility of an intense neutrino source based on a muon storage ring. This design… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ex/0008064v2-abstract-full').style.display = 'inline'; document.getElementById('hep-ex/0008064v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ex/0008064v2-abstract-full" style="display: none;"> In response to the growing interest in building a Neutrino Factory to produce high intensity beams of electron- and muon-neutrinos and antineutrinos, in October 1999 the Fermilab Directorate initiated two six-month studies. The first study, organized by N. Holtkamp and D. Finley, was to investigate the technical feasibility of an intense neutrino source based on a muon storage ring. This design study has produced a report in which the basic conclusion is that a Neutrino Factory is technically feasible, although it requires an aggressive R&D program. The second study, which is the subject of this report, was to explore the physics potential of a Neutrino Factory as a function of the muon beam energy and intensity, and for oscillation physics, the potential as a function of baseline. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ex/0008064v2-abstract-full').style.display = 'none'; document.getElementById('hep-ex/0008064v2-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, 2000; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 August, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2000. </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">133 pages, 64 figures. Report to the Fermilab Directorate. Available from http://www.fnal.gov/projects/muon_collider/ This version fixes some printing problems</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-fn-692 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/0005181">arXiv:hep-ph/0005181</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/0005181">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/0005181">ps</a>, <a href="https://arxiv.org/format/hep-ph/0005181">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/S0370-2693(00)00772-3">10.1016/S0370-2693(00)00772-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Lessons from CLEO and FOCUS Measurements of D0-anti-D0 Mixing Parameters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bergmann%2C+S">Sven Bergmann</a>, <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Yuval Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Nir%2C+Y">Yosef Nir</a>, <a href="/search/hep-ex?searchtype=author&query=Petrov%2C+A+A">Alexey A. Petrov</a> </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="hep-ph/0005181v1-abstract-short" style="display: inline;"> If the true values of the D0-anti-D0 mixing parameters lie within the one sigma ranges of recent measurements, then there is strong evidence for a large width difference, y > 0.01, and large SU(3) breaking effects in strong phases, 未> pi/4. These constraints are model independent, and would become stronger if M_{12}/Gamma_{12} << 1 in the D0-anti-D0 system. The interesting fact that the FOCUS re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0005181v1-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/0005181v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/0005181v1-abstract-full" style="display: none;"> If the true values of the D0-anti-D0 mixing parameters lie within the one sigma ranges of recent measurements, then there is strong evidence for a large width difference, y > 0.01, and large SU(3) breaking effects in strong phases, 未> pi/4. These constraints are model independent, and would become stronger if M_{12}/Gamma_{12} << 1 in the D0-anti-D0 system. The interesting fact that the FOCUS result cannot be explained by a large mass difference is not trivial and depends on the small D0-anti-D0 production asymmetry in FOCUS and the bounds on CP violating effects from CLEO. The large value of 未might help explain why y ~ sin^2(theta_c). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/0005181v1-abstract-full').style.display = 'none'; document.getElementById('hep-ph/0005181v1-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> 18 May, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2000. </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">15 pages, harvmac</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> WIS/8/00-May-DPP, SLAC-PUB-8457, FERMILAB-Pub-00/102-T, IASSNS-HEP-00-42, JHU-TIPAC-200003 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B486:418-425,2000 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/hep-ph/9510378">arXiv:hep-ph/9510378</a> <span> [<a href="https://arxiv.org/pdf/hep-ph/9510378">pdf</a>, <a href="https://arxiv.org/ps/hep-ph/9510378">ps</a>, <a href="https://arxiv.org/format/hep-ph/9510378">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey 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/10.1016/0550-3213(96)00051-X">10.1016/0550-3213(96)00051-X <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First limit on inclusive $B \to X_s 谓\bar谓$ decay and constraints on new physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Grossman%2C+Y">Yuval Grossman</a>, <a href="/search/hep-ex?searchtype=author&query=Ligeti%2C+Z">Zoltan Ligeti</a>, <a href="/search/hep-ex?searchtype=author&query=Nardi%2C+E">Enrico Nardi</a> </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="hep-ph/9510378v3-abstract-short" style="display: inline;"> The inclusive $B \to X_s 谓\bar谓$ decay rate, on which no experimental bound exists to date, can be constrained by searching for large missing energy events in $B$ decays. Carefully examining the experimental and theoretical aspects of such an analysis, we argue that the published ALEPH limit on $\BR(B \to 蟿\bar谓)$ implies, conservatively, the bound $\BR(B \to X_s 谓\bar谓)<3.9\times10^{-4}$, which… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/9510378v3-abstract-full').style.display = 'inline'; document.getElementById('hep-ph/9510378v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="hep-ph/9510378v3-abstract-full" style="display: none;"> The inclusive $B \to X_s 谓\bar谓$ decay rate, on which no experimental bound exists to date, can be constrained by searching for large missing energy events in $B$ decays. Carefully examining the experimental and theoretical aspects of such an analysis, we argue that the published ALEPH limit on $\BR(B \to 蟿\bar谓)$ implies, conservatively, the bound $\BR(B \to X_s 谓\bar谓)<3.9\times10^{-4}$, which is less than one order of magnitude above the standard model prediction. The LEP collaborations could significantly improve this bound by a dedicated experimental analysis. We study the constraints this new limit imposes on various extensions of the standard model. We derive new bounds on the couplings of third generation fermions in models with leptoquarks, and in supersymmetric models without R-parity. We also constrain models where new gauge bosons are coupled dominantly to the third generation, such as TopColor models and models based on horizontal gauge symmetries. For models which predict an enhanced effective $bsZ$ vertex, the constraint from $B \to X_s 谓\bar谓$ is competitive with the limits from inclusive and exclusive $B \to X_s \ell^+ \ell^-$ decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('hep-ph/9510378v3-abstract-full').style.display = 'none'; document.getElementById('hep-ph/9510378v3-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 July, 1996; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 October, 1995; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 1995. </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">43 pages (paper) + 3 pages (erratum), REVTeX, no figures. Erratum added (Paper unchanged). Two effects neglected in the original analysis are discussed in the Erratum. The numerical estimate of the limit on the branching ratio is weaker by about a factor of three</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> WIS-95/49/Oct-PH, CALT-68-2022 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Phys.B465:369-398,1996; Erratum-ibid.B480:753-754,1996 </p> </li> </ol> <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