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 1–9 of 9 results for author: <span class="mathjax">Hessler, J</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=Hessler%2C+J">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="Hessler, J"> </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=Hessler%2C+J&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="Hessler, J"> <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/2412.14092">arXiv:2412.14092</a> <span> [<a href="https://arxiv.org/pdf/2412.14092">pdf</a>, <a href="https://arxiv.org/format/2412.14092">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+H1+collaboration"> The H1 collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a>, <a href="/search/hep-ex?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/hep-ex?searchtype=author&query=Eckerlin%2C+G">G. Eckerlin</a> , et al. (119 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="2412.14092v2-abstract-short" style="display: inline;"> In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse momentum of the lepton-jet system, $\lvert \vec{P}_\perp \rvert $, is much larger than the total transverse momentum of the system, $\lvert \vec{q}_\perp \rvert$, the asymmetry between parallel and antiparallel configura… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.14092v2-abstract-full').style.display = 'inline'; document.getElementById('2412.14092v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.14092v2-abstract-full" style="display: none;"> In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse momentum of the lepton-jet system, $\lvert \vec{P}_\perp \rvert $, is much larger than the total transverse momentum of the system, $\lvert \vec{q}_\perp \rvert$, the asymmetry between parallel and antiparallel configurations, $\vec{P}_\perp$ and $\vec{q}_\perp$, is expected to be generated by initial and final state soft gluon radiation and can be predicted using perturbation theory. Quantifying the angular properties of the asymmetry therefore provides an additional test of the strong force. Studying the asymmetry is important for future measurements of intrinsic asymmetries generated by the proton's constituents through Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs), where this asymmetry constitutes a dominant background. Moments of the azimuthal asymmetries are measured using a machine learning method for unfolding that does not require binning. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.14092v2-abstract-full').style.display = 'none'; document.getElementById('2412.14092v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">15 pages, 4 figures, 2 tables, updated affiliations and acknowledgements</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY24-200 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.10134">arXiv:2403.10134</a> <span> [<a href="https://arxiv.org/pdf/2403.10134">pdf</a>, <a href="https://arxiv.org/format/2403.10134">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-12987-0">10.1140/epjc/s10052-024-12987-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+H1+collaboration"> The H1 collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a>, <a href="/search/hep-ex?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/hep-ex?searchtype=author&query=Eckerlin%2C+G">G. Eckerlin</a> , et al. (123 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="2403.10134v2-abstract-short" style="display: inline;"> The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at $\sqrt{s}=319$ GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of $351$ pb$^{-1}$. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurem… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.10134v2-abstract-full').style.display = 'inline'; document.getElementById('2403.10134v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.10134v2-abstract-full" style="display: none;"> The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at $\sqrt{s}=319$ GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of $351$ pb$^{-1}$. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurements in hadronic collisions; this paper presents the first application of grooming to DIS data. The analysis is carried out in the Breit frame, utilizing the novel Centauro jet clustering algorithm that is designed for DIS event topologies. Events are required to have squared momentum-transfer $Q^2 > 150$ GeV$^2$ and inelasticity $ 0.2 < y < 0.7$. We report measurements of the production cross section of groomed event 1-jettiness and groomed invariant mass for several choices of grooming parameter. Monte Carlo model calculations and analytic calculations based on Soft Collinear Effective Theory are compared to the measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.10134v2-abstract-full').style.display = 'none'; document.getElementById('2403.10134v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">32 pages, 17 tables, 7 figures, version as accepted by EPJ C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY-24-036 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> EPJC 84 (2024), 718 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.10109">arXiv:2403.10109</a> <span> [<a href="https://arxiv.org/pdf/2403.10109">pdf</a>, <a href="https://arxiv.org/format/2403.10109">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+H1+collaboration"> The H1 collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a>, <a href="/search/hep-ex?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/hep-ex?searchtype=author&query=Eckerlin%2C+G">G. Eckerlin</a> , et al. (124 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="2403.10109v1-abstract-short" style="display: inline;"> The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $蟿_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $蟿_1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA $ep$ collider in the years 2003-2007 with center-of-mass energy of $\sqrt{s}=319\,\text{GeV}$, corres… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.10109v1-abstract-full').style.display = 'inline'; document.getElementById('2403.10109v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.10109v1-abstract-full" style="display: none;"> The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $蟿_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $蟿_1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA $ep$ collider in the years 2003-2007 with center-of-mass energy of $\sqrt{s}=319\,\text{GeV}$, corresponding to an integrated luminosity of $351.1\,\text{pb}^{-1}$. Triple differential cross sections are provided as a function of $蟿_1^b$, event virtuality $Q^2$, and inelasticity $y$, in the kinematic region $Q^2>150\,\text{GeV}^{2}$. Single differential cross section are provided as a function of $蟿_1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $蟿_1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^2$ and $y$. The data are compared to a variety of predictions and include classical and modern Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal{O}(伪_s^3)$ are available for $蟿_1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal{O}(伪_s^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.10109v1-abstract-full').style.display = 'none'; document.getElementById('2403.10109v1-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 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">45 pages, 38 tables, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY-24-035 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.08982">arXiv:2403.08982</a> <span> [<a href="https://arxiv.org/pdf/2403.08982">pdf</a>, <a href="https://arxiv.org/format/2403.08982">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-13003-1">10.1140/epjc/s10052-024-13003-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+H1+collaboration"> The H1 collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a>, <a href="/search/hep-ex?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/hep-ex?searchtype=author&query=Eckerlin%2C+G">G. Eckerlin</a> , et al. (124 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="2403.08982v2-abstract-short" style="display: inline;"> The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quark is back-scattered along the virtual photon momentum direction. In Quantum Chromodynamics (QCD), higher order perturbative or non-perturbative effects can chang… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.08982v2-abstract-full').style.display = 'inline'; document.getElementById('2403.08982v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.08982v2-abstract-full" style="display: none;"> The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quark is back-scattered along the virtual photon momentum direction. In Quantum Chromodynamics (QCD), higher order perturbative or non-perturbative effects can change this picture drastically. As Bjorken-$x$ decreases below one half, a rather peculiar event signature is predicted with increasing probability, where no radiation is present in one of the two Breit-frame hemispheres and all emissions are to be found in the other hemisphere. At higher orders in $伪_s$ or in the presence of soft QCD effects, predictions of the rate of these events are far from trivial, and that motivates measurements with real data. We report on the first observation of the empty current hemisphere events in electron-proton collisions at the HERA collider using data recorded with the H1 detector at a center-of-mass energy of 319 GeV. The fraction of inclusive neutral-current DIS events with an empty hemisphere is found to be $0.0112 \pm 3.9\,\%_\text{stat} \pm 4.5\,\%_\text{syst} \pm 1.6\,\%_\text{mod}$ in the selected kinematic region of $150< Q^2<1500$ GeV$^2$ and inelasticity $0.14< y<0.7$. The data sample corresponds to an integrated luminosity of 351.1 pb$^{-1}$, sufficient to enable differential cross section measurements of these events. The results show an enhanced discriminating power at lower Bjorken-$x$ among different Monte Carlo event generator predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.08982v2-abstract-full').style.display = 'none'; document.getElementById('2403.08982v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">13 pages, 5 figures, 2 Tables. This version as accepted for publication</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY-24-034 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> EPJC 84 (2024), 720 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.13620">arXiv:2303.13620</a> <span> [<a href="https://arxiv.org/pdf/2303.13620">pdf</a>, <a href="https://arxiv.org/format/2303.13620">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2023.138101">10.1016/j.physletb.2023.138101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Unbinned Deep Learning Jet Substructure Measurement in High $Q^2$ ep collisions at HERA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+H1+collaboration"> The H1 collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a>, <a href="/search/hep-ex?searchtype=author&query=Drees%2C+A">A. Drees</a>, <a href="/search/hep-ex?searchtype=author&query=Eckerlin%2C+G">G. Eckerlin</a> , et al. (120 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="2303.13620v3-abstract-short" style="display: inline;"> The radiation pattern within high energy quark- and gluon-initiated jets (jet substructure) is used extensively as a precision probe of the strong force as well as an environment for optimizing event generators with numerous applications in high energy particle and nuclear physics. Looking at electron-proton collisions is of particular interest as many of the complications present at hadron collid… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.13620v3-abstract-full').style.display = 'inline'; document.getElementById('2303.13620v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.13620v3-abstract-full" style="display: none;"> The radiation pattern within high energy quark- and gluon-initiated jets (jet substructure) is used extensively as a precision probe of the strong force as well as an environment for optimizing event generators with numerous applications in high energy particle and nuclear physics. Looking at electron-proton collisions is of particular interest as many of the complications present at hadron colliders are absent. A detailed study of modern jet substructure observables, jet angularities, in electron-proton collisions is presented using data recorded using the H1 detector at HERA. The measurement is unbinned and multi-dimensional, using machine learning to correct for detector effects. All of the available reconstructed object information of the respective jets is interpreted by a graph neural network, achieving superior precision on a selected set of jet angularities. Training these networks was enabled by the use of a large number of GPUs in the Perlmutter supercomputer at Berkeley Lab. The particle jets are reconstructed in the laboratory frame, using the $k_{\mathrm{T}}$ jet clustering algorithm. Results are reported at high transverse momentum transfer $Q^2>150$ GeV${}^2$, and inelasticity $0.2 < y < 0.7$. The analysis is also performed in sub-regions of $Q^2$, thus probing scale dependencies of the substructure variables. The data are compared with a variety of predictions and point towards possible improvements of such models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.13620v3-abstract-full').style.display = 'none'; document.getElementById('2303.13620v3-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">25 pages, 10 figures, 8 tables, version accepted by Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY-23-034 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PLB 844 (2023) 138101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.11364">arXiv:2111.11364</a> <span> [<a href="https://arxiv.org/pdf/2111.11364">pdf</a>, <a href="https://arxiv.org/format/2111.11364">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"> Measurement of the 1-jettiness in deep-inelastic scattering at HERA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Hessler%2C+J">Johannes Hessler</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="2111.11364v1-abstract-short" style="display: inline;"> A first measurement of the 1-jettiness event shape observable $蟿_1^b$ in neutral-current deep inelastic scattering is presented. For the measurement, the equivalence of $蟿_1^b$ to the DIS thrust observable defined in the Breit frame is utilised. The data were taken by the H1 experiment at HERA from 2003 to 2007 at a centre of mass energy of $\sqrt{s}=319 \text{ GeV}$. The data amount to an integra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11364v1-abstract-full').style.display = 'inline'; document.getElementById('2111.11364v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.11364v1-abstract-full" style="display: none;"> A first measurement of the 1-jettiness event shape observable $蟿_1^b$ in neutral-current deep inelastic scattering is presented. For the measurement, the equivalence of $蟿_1^b$ to the DIS thrust observable defined in the Breit frame is utilised. The data were taken by the H1 experiment at HERA from 2003 to 2007 at a centre of mass energy of $\sqrt{s}=319 \text{ GeV}$. The data amount to an integrated luminosity of $351.6\text{ pb}^{-1}$. The triple-differential cross sections are presented as a function of the 1-jettiness $蟿^1_b$, the virtuality of the exchanged boson $Q^2$ and the inelasticity of the event $y$. The data exhibit a sensitivity to the strong coupling constant and to resummation and hadronisation effects, as well as to the parton distribution functions of the proton. The data are compared to selected predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11364v1-abstract-full').style.display = 'none'; document.getElementById('2111.11364v1-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 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.12376">arXiv:2108.12376</a> <span> [<a href="https://arxiv.org/pdf/2108.12376">pdf</a>, <a href="https://arxiv.org/format/2108.12376">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"> Measurement of lepton-jet correlation in deep-inelastic scattering with the H1 detector using machine learning for unfolding </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=H1+Collaboration"> H1 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Andreev%2C+V">V. Andreev</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Baghdasaryan%2C+A">A. Baghdasaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Baty%2C+A">A. Baty</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Belousov%2C+A">A. Belousov</a>, <a href="/search/hep-ex?searchtype=author&query=Bolz%2C+A">A. Bolz</a>, <a href="/search/hep-ex?searchtype=author&query=Boudry%2C+V">V. Boudry</a>, <a href="/search/hep-ex?searchtype=author&query=Brandt%2C+G">G. Brandt</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Buniatyan%2C+A">A. Buniatyan</a>, <a href="/search/hep-ex?searchtype=author&query=Bystritskaya%2C+L">L. Bystritskaya</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+A+J">A. J. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Avila%2C+K+B+C">K. B. Cantun Avila</a>, <a href="/search/hep-ex?searchtype=author&query=Cerny%2C+K">K. Cerny</a>, <a href="/search/hep-ex?searchtype=author&query=Chekelian%2C+V">V. Chekelian</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Z">Z. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Contreras%2C+J+G">J. G. Contreras</a>, <a href="/search/hep-ex?searchtype=author&query=Mendez%2C+L+C">L. Cunqueiro Mendez</a>, <a href="/search/hep-ex?searchtype=author&query=Cvach%2C+J">J. Cvach</a>, <a href="/search/hep-ex?searchtype=author&query=Dainton%2C+J+B">J. B. Dainton</a>, <a href="/search/hep-ex?searchtype=author&query=Daum%2C+K">K. Daum</a>, <a href="/search/hep-ex?searchtype=author&query=Deshpande%2C+A">A. Deshpande</a>, <a href="/search/hep-ex?searchtype=author&query=Diaconu%2C+C">C. Diaconu</a> , et al. (120 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.12376v2-abstract-short" style="display: inline;"> The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 detector at HERA, are corrected for detector effects using an unbinned machine learning algorithm OmniFold, which considers eight observables simultaneously in this first application. The unfolded cross sections are compa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.12376v2-abstract-full').style.display = 'inline'; document.getElementById('2108.12376v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.12376v2-abstract-full" style="display: none;"> The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 detector at HERA, are corrected for detector effects using an unbinned machine learning algorithm OmniFold, which considers eight observables simultaneously in this first application. The unfolded cross sections are compared to calculations performed within the context of collinear or transverse-momentum-dependent (TMD) factorization in Quantum Chromodynamics (QCD) as well as Monte Carlo event generators. The measurement probes a wide range of QCD phenomena, including TMD parton distribution functions and their evolution with energy in so far unexplored kinematic regions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.12376v2-abstract-full').style.display = 'none'; document.getElementById('2108.12376v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 7 figures, 4 tables, version accepted by PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 21-130 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.14491">arXiv:2007.14491</a> <span> [<a href="https://arxiv.org/pdf/2007.14491">pdf</a>, <a href="https://arxiv.org/format/2007.14491">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> <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="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/10.1088/1361-6471/abf3ba">10.1088/1361-6471/abf3ba <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Large Hadron-Electron Collider at the HL-LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Agostini%2C+P">P. Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Aksakal%2C+H">H. Aksakal</a>, <a href="/search/hep-ex?searchtype=author&query=Alekhin%2C+S">S. Alekhin</a>, <a href="/search/hep-ex?searchtype=author&query=Allport%2C+P+P">P. P. Allport</a>, <a href="/search/hep-ex?searchtype=author&query=Andari%2C+N">N. Andari</a>, <a href="/search/hep-ex?searchtype=author&query=Andre%2C+K+D+J">K. D. J. Andre</a>, <a href="/search/hep-ex?searchtype=author&query=Angal-Kalinin%2C+D">D. Angal-Kalinin</a>, <a href="/search/hep-ex?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/hep-ex?searchtype=author&query=Bella%2C+L+A">L. Aperio Bella</a>, <a href="/search/hep-ex?searchtype=author&query=Apolinario%2C+L">L. Apolinario</a>, <a href="/search/hep-ex?searchtype=author&query=Apsimon%2C+R">R. Apsimon</a>, <a href="/search/hep-ex?searchtype=author&query=Apyan%2C+A">A. Apyan</a>, <a href="/search/hep-ex?searchtype=author&query=Arduini%2C+G">G. Arduini</a>, <a href="/search/hep-ex?searchtype=author&query=Ari%2C+V">V. Ari</a>, <a href="/search/hep-ex?searchtype=author&query=Armbruster%2C+A">A. Armbruster</a>, <a href="/search/hep-ex?searchtype=author&query=Armesto%2C+N">N. Armesto</a>, <a href="/search/hep-ex?searchtype=author&query=Auchmann%2C+B">B. Auchmann</a>, <a href="/search/hep-ex?searchtype=author&query=Aulenbacher%2C+K">K. Aulenbacher</a>, <a href="/search/hep-ex?searchtype=author&query=Azuelos%2C+G">G. Azuelos</a>, <a href="/search/hep-ex?searchtype=author&query=Backovic%2C+S">S. Backovic</a>, <a href="/search/hep-ex?searchtype=author&query=Bailey%2C+I">I. Bailey</a>, <a href="/search/hep-ex?searchtype=author&query=Bailey%2C+S">S. Bailey</a>, <a href="/search/hep-ex?searchtype=author&query=Balli%2C+F">F. Balli</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+S">S. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Behnke%2C+O">O. Behnke</a> , et al. (312 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="2007.14491v2-abstract-short" style="display: inline;"> The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High Luminosity--Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent el… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.14491v2-abstract-full').style.display = 'inline'; document.getElementById('2007.14491v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.14491v2-abstract-full" style="display: none;"> The Large Hadron electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High Luminosity--Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron-proton and proton-proton operation. This report represents an update of the Conceptual Design Report (CDR) of the LHeC, published in 2012. It comprises new results on parton structure of the proton and heavier nuclei, QCD dynamics, electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics in extending the accessible kinematic range in lepton-nucleus scattering by several orders of magnitude. Due to enhanced luminosity, large energy and the cleanliness of the hadronic final states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, the report represents a detailed updated design of the energy recovery electron linac (ERL) including new lattice, magnet, superconducting radio frequency technology and further components. Challenges of energy recovery are described and the lower energy, high current, 3-turn ERL facility, PERLE at Orsay, is presented which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution and calibration goals which arise from the Higgs and parton density function physics programmes. The paper also presents novel results on the Future Circular Collider in electron-hadron mode, FCC-eh, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.14491v2-abstract-full').style.display = 'none'; document.getElementById('2007.14491v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 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">373 pages, many figures, to be published by J. Phys. G</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-ACC-Note-2020-0002 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J.Phys.G 48 (2021) 11, 110501 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.01700">arXiv:2003.01700</a> <span> [<a href="https://arxiv.org/pdf/2003.01700">pdf</a>, <a href="https://arxiv.org/format/2003.01700">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"> Les Houches 2019: Physics at TeV Colliders: Standard Model Working Group Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+S">S. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=Azzurri%2C+P">P. Azzurri</a>, <a href="/search/hep-ex?searchtype=author&query=Bendavid%2C+J">J. Bendavid</a>, <a href="/search/hep-ex?searchtype=author&query=Bothmann%2C+E">E. Bothmann</a>, <a href="/search/hep-ex?searchtype=author&query=Britzger%2C+D">D. Britzger</a>, <a href="/search/hep-ex?searchtype=author&query=Brooks%2C+H">H. Brooks</a>, <a href="/search/hep-ex?searchtype=author&query=Buckley%2C+A">A. Buckley</a>, <a href="/search/hep-ex?searchtype=author&query=Calvetti%2C+M">M. Calvetti</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chiesa%2C+M">M. Chiesa</a>, <a href="/search/hep-ex?searchtype=author&query=Cieri%2C+L">L. Cieri</a>, <a href="/search/hep-ex?searchtype=author&query=Ciulli%2C+V">V. Ciulli</a>, <a href="/search/hep-ex?searchtype=author&query=Cruz-Martinez%2C+J">J. Cruz-Martinez</a>, <a href="/search/hep-ex?searchtype=author&query=Cueto%2C+A">A. Cueto</a>, <a href="/search/hep-ex?searchtype=author&query=Denner%2C+A">A. Denner</a>, <a href="/search/hep-ex?searchtype=author&query=Dittmaier%2C+S">S. Dittmaier</a>, <a href="/search/hep-ex?searchtype=author&query=Doneg%C3%A0%2C+M">M. Doneg脿</a>, <a href="/search/hep-ex?searchtype=author&query=D%C3%BChrssen-Debling%2C+M">M. D眉hrssen-Debling</a>, <a href="/search/hep-ex?searchtype=author&query=Fabre%2C+I">I. Fabre</a>, <a href="/search/hep-ex?searchtype=author&query=Ferrario-Ravasio%2C+S">S. Ferrario-Ravasio</a>, <a href="/search/hep-ex?searchtype=author&query=de+Florian%2C+D">D. de Florian</a>, <a href="/search/hep-ex?searchtype=author&query=Forte%2C+S">S. Forte</a>, <a href="/search/hep-ex?searchtype=author&query=Francavilla%2C+P">P. Francavilla</a>, <a href="/search/hep-ex?searchtype=author&query=Gehrmann%2C+T">T. Gehrmann</a>, <a href="/search/hep-ex?searchtype=author&query=Ridder%2C+A+G">A. Gehrmann-De Ridder</a> , et al. (58 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="2003.01700v1-abstract-short" style="display: inline;"> This Report summarizes the proceedings of the 2019 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments for high precision Standard Model calculations, (II) the sensitivity of parton distribution functions to the experimental inputs, (III) new developments in jet substructure techniques and a detailed examination of gluon fragmentation at the LHC, (IV) issues… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01700v1-abstract-full').style.display = 'inline'; document.getElementById('2003.01700v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.01700v1-abstract-full" style="display: none;"> This Report summarizes the proceedings of the 2019 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments for high precision Standard Model calculations, (II) the sensitivity of parton distribution functions to the experimental inputs, (III) new developments in jet substructure techniques and a detailed examination of gluon fragmentation at the LHC, (IV) issues in the theoretical description of the production of Standard Model Higgs bosons and how to relate experimental measurements, and (V) Monte Carlo event generator studies relating to PDF evolution and comparisons of important processes at the LHC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01700v1-abstract-full').style.display = 'none'; document.getElementById('2003.01700v1-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 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Proceedings of the Standard Model Working Group of the 2019 Les Houches Workshop, Physics at TeV Colliders, Les Houches 10-28 June 2019. 226 pages</span> </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