Dipòsit Digital de la Universitat de Barcelona: Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos

<!DOCTYPE html> <html> <head> <title>Dipòsit Digital de la Universitat de Barcelona: Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos</title> <base href="https://diposit.ub.edu" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="Generator" content="DSpace 5.8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="shortcut icon" href="/dspace/favicon.ico" type="image/x-icon"/> <link rel="stylesheet" href="/dspace/static/css/jquery-ui-1.10.3.custom/redmond/jquery-ui-1.10.3.custom.css" type="text/css" /> <link rel="stylesheet" href="/dspace/static/css/bootstrap/bootstrap.min.css" type="text/css" /> <link rel="stylesheet" href="/dspace/static/css/bootstrap/bootstrap-theme.min.css" type="text/css" /> <link rel="stylesheet" href="/dspace/static/css/bootstrap/dspace-theme.css" type="text/css" /> <link rel="search" type="application/opensearchdescription+xml" href="/dspace/open-search/description.xml" title="DSpace"/> <link rel="schema.DCTERMS" href="http://purl.org/dc/terms/" /> <link rel="schema.DC" href="http://purl.org/dc/elements/1.1/" /> <meta name="DC.creator" content="Gonz谩lez Garc铆a, Ma. Concepci贸n" xml:lang="cat" /> <meta name="DC.creator" content="Maltoni, Michele" xml:lang="cat" /> <meta name="DC.creator" content="Smirnov, Alexei Yu" xml:lang="cat" /> <meta name="DCTERMS.dateAccepted" content="2010-05-06T12:37:36Z" scheme="DCTERMS.W3CDTF" /> <meta name="DCTERMS.available" content="2010-05-06T12:37:36Z" scheme="DCTERMS.W3CDTF" /> <meta name="DCTERMS.issued" content="2004" xml:lang="cat" scheme="DCTERMS.W3CDTF" /> <meta name="DC.identifier" content="0556-2821" xml:lang="cat" /> <meta name="DC.identifier" content="https://hdl.handle.net/2445/12518" scheme="DCTERMS.URI" /> <meta name="DCTERMS.abstract" content="The measurement of the deviation of the 2-3 leptonic mixing from maximal, D_23 = 1/2 - sin^2(theta_23), is one of the key issues for understanding the origin of the neutrino masses and mixing. In the three-neutrino context we study the dependence of various observables in the atmospheric neutrinos on D_23. We perform a global three-neutrino analysis of the atmospheric and reactor neutrino data taking into account the effects of both the oscillations driven by the "solar" parameters (Delta_m_21^2 and theta_12) and the 1-3 mixing. The departure from the one-dominant mass scale approximation results into the shift of the 2-3 mixing from maximal by Delta_sin^2(theta_23) ~ 0.04, so that D_23 ~ 0.04 +- 0.07 (1 sigma). Though value of the shift is not statistically significant, the tendency is robust. The shift is induced by the excess of the e-like events in the sub-GeV sample. We show that future large scale water Cherenkov detectors can determine D_23 with accuracy of a few percent, comparable with the sensitivity of future long baseline experiments. Moreover, the atmospheric neutrinos will provide unique information on the sign of the deviation (octant of theta_23)." /> <meta name="DCTERMS.extent" content="10 p." xml:lang="cat" /> <meta name="DC.format" content="application/pdf" xml:lang="eng" /> <meta name="DC.language" content="eng" xml:lang="eng" scheme="DCTERMS.RFC1766" /> <meta name="DC.publisher" content="The American Physical Society" xml:lang="eng" /> <meta name="DCTERMS.isFormatOf" content="Reproducci贸 digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.70.093005" xml:lang="cat" /> <meta name="DCTERMS.isPartOf" content="Physical Review D, 2004, vol. 70, n煤m. 9, p. 093005-1-093005-10" xml:lang="cat" /> <meta name="DC.relation" content="http://dx.doi.org/10.1103/PhysRevD.70.093005" scheme="DCTERMS.URI" /> <meta name="DC.rights" content="(c) The American Physical Society, 2004" xml:lang="eng" /> <meta name="DC.source" content="Articles publicats en revistes (F铆sica Qu脿ntica i Astrof铆sica)" /> <meta name="DC.subject" content="Part铆cules (F铆sica nuclear)" xml:lang="cat" /> <meta name="DC.subject" content="Astrof铆sica nuclear" xml:lang="cat" /> <meta name="DC.subject" content="Astronomia" xml:lang="cat" /> <meta name="DC.subject" content="Particles (Nuclear physics)" xml:lang="eng" /> <meta name="DC.subject" content="Nuclear astrophysics" xml:lang="eng" /> <meta name="DC.subject" content="Astronomia" xml:lang="eng" /> <meta name="DC.title" content="Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos" xml:lang="eng" /> <meta name="DC.type" content="info:eu-repo/semantics/article" xml:lang="eng" /> <meta name="DC.type" content="info:eu-repo/semantics/publishedVersion" /> <meta name="DC.identifier" content="551572" xml:lang="cat" /> <meta name="DC.rights" content="info:eu-repo/semantics/openAccess" /> <meta name="citation_keywords" content="info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion" /> <meta name="citation_title" content="Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos" /> <meta name="citation_issn" content="0556-2821" /> <meta name="citation_publisher" content="The American Physical Society" /> <meta name="citation_language" content="eng" /> <meta name="citation_author" content="Gonz谩lez Garc铆a, Ma. Concepci贸n" /> <meta name="citation_author" content="Maltoni, Michele" /> <meta name="citation_author" content="Smirnov, Alexei Yu" /> <meta name="citation_pdf_url" content="https://diposit.ub.edu/dspace/bitstream/2445/12518/1/551572.pdf" /> <meta name="citation_date" content="2004" /> <meta name="citation_abstract_html_url" content="https://diposit.ub.edu/dspace/handle/2445/12518" /> <script type='text/javascript' src="/dspace/static/js/jquery/jquery-1.10.2.min.js"></script> <script type='text/javascript' src='/dspace/static/js/jquery/jquery-ui-1.10.3.custom.min.js'></script> <script type='text/javascript' src='/dspace/static/js/bootstrap/bootstrap.min.js'></script> <script type='text/javascript' src='/dspace/static/js/holder.js'></script> <script type="text/javascript" src="/dspace/utils.js"></script> <script type="text/javascript" src="/dspace/static/js/choice-support.js"> </script>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-TTP469ZDVB"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-TTP469ZDVB'); </script>   </head> <body class="undernavigation"> <a class="sr-only" href="#content">Skip navigation</a> <header class="navbar navbar-inverse navbar-fixed-top" style='background:-webkit-linear-gradient(#6685a9,#406086);background:-o-linear-gradient(#6685a9,#406086);background:-moz-linear-gradient(#6685a9,#406086);background:linear-gradient(#6685a9,#406086);'> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>  </div> <nav class="collapse navbar-collapse bs-navbar-collapse" role="navigation"> <ul class="nav navbar-nav">  <li class=''> <a style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'" href="/dspace/"> <span class="glyphicon glyphicon-home"></span> Home </a> </li>  <li class="dropdown"> <a style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'" href="#" class="dropdown-toggle" data-toggle="dropdown">Browse <b class="caret"></b></a> <ul class="dropdown-menu"> <li><a href="/dspace/community-list">Communities<br/>& Collections</a></li> <li class="divider"></li> <li class="dropdown-header">Browse Items by:</li> <li><a href="/dspace/browse?type=dateissued">Issue Date</a></li> <li><a href="/dspace/browse?type=author">Author</a></li> <li><a href="/dspace/browse?type=title">Title</a></li> <li><a href="/dspace/browse?type=subject">Subject</a></li> </ul> </li>  <li class=""> <script type="text/javascript"> document.write('<a style=\'color:#ddd\' onMouseOver="this.style.color=\'#fff\'" onMouseOut="this.style.color=\'#ddd\'" href="#" onClick="var popupwin = window.open(\'/dspace/help/index.html\',\'dspacepopup\',\'height=600,width=550,resizable,scrollbars\');popupwin.focus();return false;">Help<\/a>'); </script> <noscript> <a target="dspacepopup" href="/dspace/help/index.html" style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'">Help</a> </noscript> </li>  <li> <a target='_blank' style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'" href='http://crai.ub.edu/ca/que-ofereix-el-crai/publicar-repositoris-ub/instruccions'>How to publish</a> </li>   </ul>  <div class="nav navbar-nav navbar-right"> <ul class="nav navbar-nav navbar-right"> <li class="dropdown"> <a style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'" href="#" class="dropdown-toggle" data-toggle="dropdown">Language<b class="caret"></b></a> <ul class="dropdown-menu"> <li> <a onclick="javascript:document.repost.locale.value='en'; document.repost.submit();" href="/dspace?locale=en"> English </a> </li> <li> <a onclick="javascript:document.repost.locale.value='es'; document.repost.submit();" href="/dspace?locale=es"> espa帽ol </a> </li> <li> <a onclick="javascript:document.repost.locale.value='ca'; document.repost.submit();" href="/dspace?locale=ca"> catal脿 </a> </li> </ul> </li> </ul> </div>  <div class="nav navbar-nav navbar-right"> <ul class="nav navbar-nav navbar-right"> <li class="dropdown">  <a style='color:#ddd' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#ddd'" href="#" class="dropdown-toggle" data-toggle="dropdown"><span class="glyphicon glyphicon-user"></span> Sign on to: <b class="caret"></b></a> <ul class="dropdown-menu"> <li><a href="/dspace/mydspace">My DSpace</a></li> <li><a href="/dspace/subscribe">Receive email<br/>updates</a></li> <li><a href="/dspace/profile">Edit Profile</a></li> </ul> </li> </ul> <form method="get" action="/dspace/simple-search" class="navbar-form navbar-right"> <div class="form-group"> <input type="text" class="form-control" placeholder="Search DSpace" name="query" id="tequery" size="25"/> </div> <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search"></span></button> </form></div> </nav> </div> </header> <main id="content" role="main"> <div class="container banner"> <div class="row"> <div class="col-md-6"> <a href='/dspace/'> <img class="pull-left" src="/dspace/image/logoDD.jpg" alt="Logo DD" /> </a> </div> <div class="col-md-6"> <a target='_blank' href='http://www.ub.edu/web/ub/en/'> <img class="pull-right" src="/dspace/image/logoUB.png" alt="Logo UB" /> </a> </div> </div> </div> <div class="container"> <ol style='max-width:100%;' class="breadcrumb btn-success"> <a target='_blank' href='https://twitter.com/DD_UB'><img class='logotwitter' src='/dspace/image/logoTwitter.png'/></a> <li><a href="/dspace/">Dipòsit Digital de la Universitat de Barcelona</a></li> <li><a href="/dspace/handle/2445/7181">Recerca</a></li> <li><a href="/dspace/handle/2445/7503">F铆sica Qu脿ntica i Astrof铆sica</a></li> <li><a href="/dspace/handle/2445/7504">Articles publicats en revistes (F铆sica Qu脿ntica i Astrof铆sica)</a></li> </ol> </div> <div class="container">  <script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5579653e05792ba5" async="async"></script> <div class="addthis_sharing_toolbox"></div> <div class="well">Please use this identifier to cite or link to this item: <code>https://hdl.handle.net/2445/12518</code></div> <table class="table itemDisplayTable"> <tr><td class="metadataFieldLabel">Title: </td><td class="metadataFieldValue">Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos</td></tr> <tr><td class="metadataFieldLabel">Author: </td><td class="metadataFieldValue"><a class="author"href="/dspace/browse?type=author&value=Gonz%C3%A1lez+Garc%C3%ADa%2C+Ma.+Concepci%C3%B3n">Gonz谩lez Garc铆a, Ma. Concepci贸n</a><br /><a class="author"href="/dspace/browse?type=author&value=Maltoni%2C+Michele">Maltoni, Michele</a><br /><a class="author"href="/dspace/browse?type=author&value=Smirnov%2C+Alexei+Yu">Smirnov, Alexei Yu</a></td></tr> <tr><td class="metadataFieldLabel">Keywords: </td><td class="metadataFieldValue">Part铆cules (F铆sica nuclear)<br />Astrof铆sica nuclear<br />Astronomia<br />Particles (Nuclear physics)<br />Nuclear astrophysics<br />Astronomia</td></tr> <tr><td class="metadataFieldLabel">Issue Date: </td><td class="metadataFieldValue">2004</td></tr> <tr><td class="metadataFieldLabel">Publisher: </td><td class="metadataFieldValue">The American Physical Society</td></tr> <tr><td class="metadataFieldLabel">Abstract: </td><td class="metadataFieldValue">The measurement of the deviation of the 2-3 leptonic mixing from maximal, D_23 = 1/2 - sin^2(theta_23), is one of the key issues for understanding the origin of the neutrino masses and mixing. In the three-neutrino context we study the dependence of various observables in the atmospheric neutrinos on D_23. We perform a global three-neutrino analysis of the atmospheric and reactor neutrino data taking into account the effects of both the oscillations driven by the "solar" parameters (Delta_m_21^2 and theta_12) and the 1-3 mixing. The departure from the one-dominant mass scale approximation results into the shift of the 2-3 mixing from maximal by Delta_sin^2(theta_23) ~ 0.04, so that D_23 ~ 0.04 +- 0.07 (1 sigma). Though value of the shift is not statistically significant, the tendency is robust. The shift is induced by the excess of the e-like events in the sub-GeV sample. We show that future large scale water Cherenkov detectors can determine D_23 with accuracy of a few percent, comparable with the sensitivity of future long baseline experiments. Moreover, the atmospheric neutrinos will provide unique information on the sign of the deviation (octant of theta_23).</td></tr> <tr><td class="metadataFieldLabel">Note: </td><td class="metadataFieldValue">Reproducci贸 digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.70.093005</td></tr> <tr><td class="metadataFieldLabel">It is part of: </td><td class="metadataFieldValue">Physical Review D, 2004, vol. 70, n煤m. 9, p. 093005-1-093005-10</td></tr> <tr><td class="metadataFieldLabel">URI: </td><td class="metadataFieldValue"><a href="https://hdl.handle.net/2445/12518">https://hdl.handle.net/2445/12518</a></td></tr> <tr><td class="metadataFieldLabel">Related resource: </td><td class="metadataFieldValue"><a href="http://dx.doi.org/10.1103/PhysRevD.70.093005">http://dx.doi.org/10.1103/PhysRevD.70.093005</a></td></tr> <tr><td class="metadataFieldLabel">ISSN: </td><td class="metadataFieldValue">0556-2821</td></tr> <tr><td class="metadataFieldLabel">Appears in Collections:</td><td class="metadataFieldValue"><a href="/dspace/handle/2445/7504">Articles publicats en revistes (F铆sica Qu脿ntica i Astrof铆sica)</a><br/></td></tr> </table><br/> <div class="panel panel-info"><div class="panel-heading">Files in This Item:</div> <table class="table panel-body"><tr><th id="t1" class="standard">File</th> <th id="t2" class="standard">Description</th> <th id="t3" class="standard">Size</th><th id="t4" class="standard">Format</th><th> </th></tr> <tr><td headers="t1" class="standard"><a target="_blank" href="/dspace/bitstream/2445/12518/1/551572.pdf">551572.pdf</a></td><td headers="t2" class="standard"></td><td headers="t3" class="standard">1.01 MB</td><td headers="t4" class="standard">Adobe PDF</td><td class="standard" align="center"><a class="btn btn-primary" target="_blank" href="/dspace/bitstream/2445/12518/1/551572.pdf">View/Open</a></td></tr></table> </div> <div class="container row"> <a class="btn btn-default" href="/dspace/handle/2445/12518?mode=full"> Show full item record </a> </div> <br/> <br/> <p class="submitFormHelp alert alert-info"> Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.   </p> <div class="addthis_sharing_toolbox"></div> </div> </main> <footer class="navbar navbar-inverse navbar-bottom" style='background:-webkit-linear-gradient(#6685a9,#406086);background:-o-linear-gradient(#6685a9,#406086);background:-moz-linear-gradient(#6685a9,#406086);background:linear-gradient(#6685a9,#406086);border-radius:0;border:0;width:100%'> <div id="designedby" class="container text-muted">  <div id="footer_feedback" class="pull-left"> <p class="text-muted"> <span style='color:white'>Coordination: </span> <a style='color:#000' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#000'" target='_blank' href='http://crai.ub.edu/en'> CRAI Universitat de Barcelona</a>       <a style='color:#000' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#000'" target="_blank" href='http://www.ub.edu/web/ub/en/menu_peu/avislegal/avis_legal.html'>Legal notice</a> </p> </div> <div id="footer_feedback" class="pull-right"> <p class="text-muted"> <span style='color:white'>Metadata subject to: </span> <a target='_blank' href='http://creativecommons.org/publicdomain/zero/1.0/'> <img src="/dspace/image/logoCC.png" alt="Logo CC" /> </a>      <span style='color:white'>Powered by: </span> <a style='color:#000' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#000'" target="_blank" href="http://dspace.org/">DSpace</a>      <a style='color:#000' onMouseOver="this.style.color='#fff'" onMouseOut="this.style.color='#000'" target="_blank" href="/dspace/feedback">Contact us</a> </p> </div>  </div> </footer> </body> </html>

CINXE.COM

Dipòsit Digital de la Universitat de Barcelona: Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos