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The density an be measured via the multipli ity distribution in a nite size dete tor, as it is L3. With a shallow depth of 30 meters under ground, the dete tor provides an ex ellent fa ility to measure a high muon rate, but being shielded from the hadroni and ele troni shower omponent. Subje t of this thesis is the des ription of the L3 Cosmi s experiment (L3+C), whi h is taking data sin e May 1999 and the analysis of muon bundles in the large magneti spe trometer of L3. The new osmi trigger and readout system is brie y des ribed. The in uen e of dierent primaries on the multipli ity distribution has been investigated using Monte Carlo event samples, generated with the CORSIKA program. The simulation results showed that L3+C measures in the region of the \knee" of the primary spe trum of osmi rays. A new pattern re ognition has been developed and added to the re onstru tion ode, whi h enables the program, to re ognise events having a high number of tra ks. A omparison of the data with a simple two- omponent-model, whi h des ribes the hemi al omposition of the primary osmi radiation with protons and iron nu lei, shows good agreement within the statisti al error. Schmitt, Volker" /> <meta name="keywords" content="CERN Document Server, WebSearch, L3 Preprints" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="https://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="Analysis of Multi Muon Events in the L3 Detector" name="citation_title" /> <meta content="Schmitt, Volker" name="citation_author" /> <meta content="2000" name="citation_publication_date" /> <meta name="citation_online_date" content="2017/09/23"> <meta content="CERN-THESIS-2000-067" name="citation_technical_report_number" /> <meta content="Humboldt U., Berlin" name="citation_dissertation_institution" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2285506/files/Fulltext.pdf" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2285506/files/Fulltext_2.pdf" />  <meta content="Analysis of Multi Muon Events in the L3 Detector" property="og:title" /> <meta content="arXiv" property="og:title" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2285506" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="The muon density distribution in air showers initiated by osmi parti les is sensitive to the hemi al omposition of osmi rays. The density an be measured via the multipli ity distribution in a nite size dete tor, as it is L3. With a shallow depth of 30 meters under ground, the dete tor provides an ex ellent fa ility to measure a high muon rate, but being shielded from the hadroni and ele troni shower omponent. Subje t of this thesis is the des ription of the L3 Cosmi s experiment (L3+C), whi h is taking data sin e May 1999 and the analysis of muon bundles in the large magneti spe trometer of L3. The new osmi trigger and readout system is brie y des ribed. The in uen e of dierent primaries on the multipli ity distribution has been investigated using Monte Carlo event samples, generated with the CORSIKA program. The simulation results showed that L3+C measures in the region of the \knee&quot; of the primary spe trum of osmi rays. A new pattern re ognition has been developed and added to the re onstru tion ode, whi h enables the program, to re ognise events having a high number of tra ks. A omparison of the data with a simple two- omponent-model, whi h des ribes the hemi al omposition of the primary osmi radiation with protons and iron nu lei, shows good agreement within the statisti al error." property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="L332Preprints search" lang="ru">  <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=ru&referer=https%3A//cds.cern.ch/record/2285506%3Fln%3Dru" 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="https://cds.cern.ch/?ln=ru">Искать</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=ru">Внести</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=ru">Помощь</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=ru">Персонализовать</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=ru">Ваши оповещения</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=ru">Ваши книжные полки</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=ru">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=ru">Ваши поисковые запросы</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=ru" class="navtrail">Главная страница</a> > <a href="/collection/L3%20Preprints?ln=ru" class="navtrail">L3 Preprints</a> > Analysis of Multi Muon Events in the L3 Detector </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/2285506/?ln=ru">Информация </a></li><li class=""><a href="/record/2285506/comments?ln=ru">Обсуждение (0) </a></li><li class=""><a href="/record/2285506/files?ln=ru">Файлы </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="2285506"></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-2000-067</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Analysis of Multi Muon Events in the L3 Detector</b></td></tr> <tr><td class="formatRecordLabel" style="vertical-align:top;">Related title</td><td style="padding-left:5px; ">Analysis of Multi Muon Events in the L3 Detector<br/></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;">Author(s)</span> </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=author&p=Schmitt%2C%20Volker&ln=ru">Schmitt, Volker</a> (Humboldt U., Berlin)</td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2000 - 77.</td></tr> <tr><td class="formatRecordLabel"> Thesis note </td><td style="padding-left:5px;">Master : Humboldt U., Berlin : 2000</td></tr> <tr><td class="formatRecordLabel"> Thesis supervisor(s) </td><td style="padding-left:5px;"><a href="/search?f=author&p=Hebbeker, T.">Hebbeker, T.</a></td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?p=CERN%20LEP&f=693__a">CERN LEP</a> ; <a href="https://cds.cern.ch/search?p=L3&f=693__e">L3</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">The muon density distribution in air showers initiated by osmi parti les is sensitive to the hemi al omposition of osmi rays. The density an be measured via the multipli ity distribution in a nite size dete tor, as it is L3. With a shallow depth of 30 meters under ground, the dete tor provides an ex ellent fa ility to measure a high muon rate, but being shielded from the hadroni and ele troni shower omponent. Subje t of this thesis is the des ription of the L3 Cosmi s experiment (L3+C), whi h is taking data sin e May 1999 and the analysis of muon bundles in the large magneti spe trometer of L3. The new osmi trigger and readout system is brie y des ribed. The in uen e of dierent primaries on the multipli ity distribution has been investigated using Monte Carlo event samples, generated with the CORSIKA program. The simulation results showed that L3+C measures in the region of the \knee" of the primary spe trum of osmi rays. A new pattern re ognition has been developed and added to the re onstru tion ode, whi h enables the program, to re ognise events having a high number of tra ks. A omparison of the data with a simple two- omponent-model, whi h des ribes the hemi al omposition of the primary osmi radiation with protons and iron nu lei, shows good agreement within the statisti al error.</td></tr> </table> <br/>Corresponding record in: <a href="http://inspirehep.net/record/523552">Inspire</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"> Запись создана 2017-09-23, последняя модификация 2019-06-03</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=ru&p=recid%3A2285506&rm=wrd" class="moreinfo">Подобные записи</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">Полный текст:</small> <br /><em>Fulltext</em> - <a href="/record/2285506/files/Fulltext.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Загрузка полного текста"/>PDF</a><br /><em>Fulltext_2</em> - <a href="/record/2285506/files/Fulltext_2.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Загрузка полного текста"/>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=ru&recid=2285506">Добавить в личную книжную полку</a></li> <li>Экспортировать как <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/hx?ln=ru">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/hm?ln=ru">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/xm?ln=ru">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/xd?ln=ru">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/xe?ln=ru">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/xn?ln=ru">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2285506/export/xw?ln=ru">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', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:2285506/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/2285506', addEmail: true, title: "Analysis of Multi Muon Events in the L3 Detector", description: "The muon density distribution in air showers initiated by osmi parti les is sensitive to the hemi al omposition of osmi rays. The density an be measured via the multipli ity distribution in a nite size dete tor, as it is L3. With a shallow depth of 30 meters under ground, the dete tor provides an ex ellent fa ility to measure a high muon rate, but being shielded from the hadroni and ele troni shower omponent. Subje t of this thesis is the des ription of the L3 Cosmi s experiment (L3+C), whi h is taking data sin e May 1999 and the analysis of muon bundles in the large magneti spe trometer of L3. The new osmi trigger and readout system is brie y des ribed. The in uen e of dierent primaries on the multipli ity distribution has been investigated using Monte Carlo event samples, generated with the CORSIKA program. The simulation results showed that L3+C measures in the region of the \\knee\" of the primary spe trum of osmi rays. A new pattern re ognition has been developed and added to the re onstru tion ode, whi h enables the program, to re ognise events having a high number of tra ks. 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