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By performing this measurement as a function of multiplicity in p-Pb collisions and by comparing to similar measurements in pp collisions, we can evaluate the pT-differential baryon to meson enhancement and relate it to results in e+e− and ep collisions, where lower Lambda_c /D0 ratios at low and intermediate pT have been observed. The origin of this discrepancy, which leads to the breakdown of the so-called factorization theorem for the elementary particle collisions, is still being debated. We aim to compare the p-Pb results not only to pp collisions to investigate the possible effects of cold nuclear matter, but to Pb-Pb collisions to study the impact of quark–gluon plasma formation on charm quark hadronization. This dissertation, aims to understand the charm quark hadronization in small systems by its evaluation as a function of system size. We also examine event generators alongside experimental data, both of which are essential to understanding the physics of interest and evaluate detector effects. Our goal is to investigate various models that implement different mechanisms of hadronization, to see where they match or differ from the data. In event generators, we have the ability to manipulate various parameters of the system’s dynamics, allowing us to isolate different effects and modes and understand their influence on the final observations. Such comparisons reveal whether we have accurately understood the physics of hadronization. Specifically, we discuss PYTHIA, a time dynamical event generator, and compare its performance against models that incorporate statistical and thermal approaches such as Statistical Hadronization Model (SHM), and Quark (re) Combination Model (QCM). We discuss how these models perform at explaining features of the transition of the system from pp to p-Pb and Pb-Pb. Sheibani, Oveis" /> <meta name="keywords" content="CERN Document Server, WebSearch, ALICE Preprints" /> <script type="text/javascript" src="http://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="http://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="http://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ tex2jax: {inlineMath: [['$','$']], processEscapes: true}, showProcessingMessages: false, messageStyle: "none" }); </script> <script src="/MathJax/MathJax.js?config=TeX-AMS_CHTML" type="text/javascript"> </script>  <meta content="Measurements of Prompt Lambda_c /D0 Ratio as a Function of Multiplicity at the ALICE Experiment: An Investigation of Charm Hadronization in Small Systems" name="citation_title" /> <meta content="Sheibani, Oveis" name="citation_author" /> <meta content="2024/04/02" name="citation_publication_date" /> <meta name="citation_online_date" content="2024/10/16"> <meta content="CERN-THESIS-2024-193" name="citation_technical_report_number" /> <meta content="Houston U." name="citation_dissertation_institution" /> <meta name="citation_pdf_url" content="http://cds.cern.ch/record/2913840/files/CERN-THESIS-2024-193.pdf" />  <meta content="Measurements of Prompt Lambda_c /D0 Ratio as a Function of Multiplicity at the ALICE Experiment: An Investigation of Charm Hadronization in Small Systems" property="og:title" /> <meta content="website" property="og:type" /> <meta content="http://cds.cern.ch/record/2913840" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="In this dissertation, the measurement of the prompt Lambda_c /D0 ratio as a function of multiplicity in p-Pb collisions at mid-rapidity at sqrt(sNN) = 5.02 TeV is discussed. By performing this measurement as a function of multiplicity in p-Pb collisions and by comparing to similar measurements in pp collisions, we can evaluate the pT-differential baryon to meson enhancement and relate it to results in e+e− and ep collisions, where lower Lambda_c /D0 ratios at low and intermediate pT have been observed. The origin of this discrepancy, which leads to the breakdown of the so-called factorization theorem for the elementary particle collisions, is still being debated. We aim to compare the p-Pb results not only to pp collisions to investigate the possible effects of cold nuclear matter, but to Pb-Pb collisions to study the impact of quark–gluon plasma formation on charm quark hadronization. This dissertation, aims to understand the charm quark hadronization in small systems by its evaluation as a function of system size. We also examine event generators alongside experimental data, both of which are essential to understanding the physics of interest and evaluate detector effects. Our goal is to investigate various models that implement different mechanisms of hadronization, to see where they match or differ from the data. In event generators, we have the ability to manipulate various parameters of the system’s dynamics, allowing us to isolate different effects and modes and understand their influence on the final observations. Such comparisons reveal whether we have accurately understood the physics of hadronization. Specifically, we discuss PYTHIA, a time dynamical event generator, and compare its performance against models that incorporate statistical and thermal approaches such as Statistical Hadronization Model (SHM), and Quark (re) Combination Model (QCM). We discuss how these models perform at explaining features of the transition of the system from pp to p-Pb and Pb-Pb." property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="ALICE32Preprints search" lang="ka">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=ka&referer=http%3A//cds.cern.ch/record/2913840%3Fln%3Dka" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="http://cds.cern.ch/?ln=ka">ძებნა</a></li> <li class="menu-444 "><a class="" title="" href="http://cds.cern.ch/submit?ln=ka">დაყენება</a></li> <li class="menu-426 "><a class="" href="http://cds.cern.ch/help/?ln=ka">დახმარება</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=ka">პერს</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=ka">თქვენი ცვლილებები</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=ka">თქვენი კალათები</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=ka">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=ka">თქვენი ძებნა</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=ka" class="navtrail">მთავარი</a> > <a href="/collection/CERN%20Experiments?ln=ka" class="navtrail">CERN Experiments</a> > <a href="/collection/LHC%20Experiments?ln=ka" class="navtrail">LHC Experiments</a> > <a href="/collection/ALICE?ln=ka" class="navtrail">ALICE</a> > <a href="/collection/ALICE%20Preprints?ln=ka" class="navtrail">ALICE Preprints</a> > Measurements of Prompt Lambda_c /D0 Ratio as a Function of Multiplicity at the ALICE Experiment: An Investigation of Charm Hadronization in Small Systems </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/2913840/?ln=ka">ინფორმაცია </a></li><li class=""><a href="/record/2913840/comments?ln=ka">განხილვა (0) </a></li><li class=""><a href="/record/2913840/files?ln=ka">Files </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px"> </div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside">  <abbr class="unapi-id" title="2913840"></abbr> <style type="text/css">  </style> <script type="text/javascript" src="/js/pdf-previewer-append-to-table.js"></script> <table class="formatRecordTableFullWidth" > <tr> <td class="formatRecordHeader" style="background-image: url('https://cds.cern.ch/img/journals.jpg');" colspan="2"> Thesis </td> </tr> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;">CERN-THESIS-2024-193</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Measurements of Prompt Lambda_c /D0 Ratio as a Function of Multiplicity at the ALICE Experiment: An Investigation of Charm Hadronization in Small Systems</b></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;">Author(s)</span> </td><td style="padding-left:5px;"><a href="http://cds.cern.ch/search?f=author&p=Sheibani%2C%20Oveis&ln=ka">Sheibani, Oveis</a> (Houston U.)</td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2024 - 157.</td></tr> <tr><td class="formatRecordLabel"> Thesis note </td><td style="padding-left:5px;">PhD : Houston U. : 2024-05-01</td></tr> <tr><td class="formatRecordLabel"> Thesis supervisor(s) </td><td style="padding-left:5px;"><a href="/search?f=author&p=Bellwied, Rene">Bellwied, Rene</a></td></tr> <tr><td class="formatRecordLabel"> Note </td><td style="padding-left:5px;">Presented 02 Apr 2024</td></tr> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Nuclear Physics - Experiment ; Nuclear Physics - Theory</td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="http://cds.cern.ch/search?p=CERN%20LHC&f=693__a">CERN LHC</a> ; <a href="http://cds.cern.ch/search?p=ALICE&f=693__e">ALICE</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">In this dissertation, the measurement of the prompt Lambda_c /D0 ratio as a function of multiplicity in p-Pb collisions at mid-rapidity at sqrt(sNN) = 5.02 TeV is discussed. By performing this measurement as a function of multiplicity in p-Pb collisions and by comparing to similar measurements in pp collisions, we can evaluate the pT-differential baryon to meson enhancement and relate it to results in e+e− and ep collisions, where lower Lambda_c /D0 ratios at low and intermediate pT have been observed. The origin of this discrepancy, which leads to the breakdown of the so-called factorization theorem for the elementary particle collisions, is still being debated. We aim to compare the p-Pb results not only to pp collisions to investigate the possible effects of cold nuclear matter, but to Pb-Pb collisions to study the impact of quark–gluon plasma formation on charm quark hadronization. This dissertation, aims to understand the charm quark hadronization in small systems by its evaluation as a function of system size. We also examine event generators alongside experimental data, both of which are essential to understanding the physics of interest and evaluate detector effects. Our goal is to investigate various models that implement different mechanisms of hadronization, to see where they match or differ from the data. In event generators, we have the ability to manipulate various parameters of the system’s dynamics, allowing us to isolate different effects and modes and understand their influence on the final observations. Such comparisons reveal whether we have accurately understood the physics of hadronization. Specifically, we discuss PYTHIA, a time dynamical event generator, and compare its performance against models that incorporate statistical and thermal approaches such as Statistical Hadronization Model (SHM), and Quark (re) Combination Model (QCM). We discuss how these models perform at explaining features of the transition of the system from pp to p-Pb and Pb-Pb.</td></tr> </table> <br/>Corresponding record in: <a href="http://inspirehep.net/record/2829054">Inspire</a> <br/>Email contact: <a href="mailto:rene.bellwied@cern.ch">rene.bellwied@cern.ch</a> <small> </small> <small> </small> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> ჩანაწერი შექმნილია 2024-10-16, ბოლოს შესწორებულია 2024-11-11</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=ka&p=recid%3A2913840&rm=wrd" class="moreinfo">მსგავსი ჩანაწერები</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">სრული ტექსტი:</small> <br /><a href="/record/2913840/files/CERN-THESIS-2024-193.pdf"><img style="border:none" src="/img/file-icon-text-34x48.gif" alt="სრული ტექსტის ჩამოტვირთვა" /><br />PDF</a><br /></div> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=ka&recid=2913840">პირად კალათაში დამატება</a></li> <li>ექსპორტირება <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/hx?ln=ka">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/hm?ln=ka">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/xm?ln=ka">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/xd?ln=ka">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/xe?ln=ka">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/xn?ln=ka">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2913840/export/xw?ln=ka">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'http://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:2913840/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'http://cds.cern.ch/record/2913840', addEmail: true, title: "Measurements of Prompt Lambda_c /D0 Ratio as a Function of Multiplicity at the ALICE Experiment: An Investigation of Charm Hadronization in Small Systems", description: "In this dissertation, the measurement of the prompt Lambda_c /D0 ratio as a function of multiplicity in p-Pb collisions at mid-rapidity at sqrt(sNN) = 5.02 TeV is discussed. By performing this measurement as a function of multiplicity in p-Pb collisions and by comparing to similar measurements in pp collisions, we can evaluate the pT-differential baryon to meson enhancement and relate it to results in e+e\u2212 and ep collisions, where lower Lambda_c /D0 ratios at low and intermediate pT have been observed. The origin of this discrepancy, which leads to the breakdown of the so-called factorization theorem for the elementary particle collisions, is still being debated. We aim to compare the p-Pb results not only to pp collisions to investigate the possible effects of cold nuclear matter, but to Pb-Pb collisions to study the impact of quark\u2013gluon plasma formation on charm quark hadronization. This dissertation, aims to understand the charm quark hadronization in small systems by its evaluation as a function of system size. We also examine event generators alongside experimental data, both of which are essential to understanding the physics of interest and evaluate detector effects. Our goal is to investigate various models that implement different mechanisms of hadronization, to see where they match or differ from the data. In event generators, we have the ability to manipulate various parameters of the system\u2019s dynamics, allowing us to isolate different effects and modes and understand their influence on the final observations. Such comparisons reveal whether we have accurately understood the physics of hadronization. Specifically, we discuss PYTHIA, a time dynamical event generator, and compare its performance against models that incorporate statistical and thermal approaches such as Statistical Hadronization Model (SHM), and Quark (re) Combination Model (QCM). 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