CINXE.COM
404 Not Found - CERN Document Server
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <!--[if IEMobile 7]><html class="iem7" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if lte IE 6]><html class="ie6 ie6-7 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if (IE 7)&(!IEMobile)]><html class="ie7 ie6-7 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if IE 8]><html class="ie8 ie6-8" xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><![endif]--> <!--[if (gte IE 9)|(gt IEMobile 7)]><!--><html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"><!--<![endif]--> <head> <title>404 Not Found - CERN Document Server</title> <link href='https://framework.web.cern.ch/framework/2.0/fonts/PTSansWeb/PTSansWeb.css' rel='stylesheet' type='text/css' /> <link rel="stylesheet" href="https://cds.cern.ch/img/invenio.css?v=20141127" type="text/css" /> <link rel="stylesheet" href="https://cds.cern.ch/img/cern_theme/css/cern_theme.css?v=20141127" type="text/css" /> <link rel="stylesheet"href="/css/font-awesome.min.css"> <meta http-equiv="X-UA-Compatible" content="IE=Edge"/> <link rel="stylesheet" href="https://cds.cern.ch/img/cern_toolbar/css/toolbar.css" type="text/css" /> <!--[if lt IE 8]> <link href="https://cds.cern.ch/img/cern_toolbar/css/toolbar-ie.css" rel="stylesheet" type="text/css"> <![endif]--> <!--[if lt IE 8]> <link rel="stylesheet" type="text/css" href="https://cds.cern.ch/img/invenio-ie7.css" /> <![endif]--> <!--[if gt IE 8]> <style type="text/css">div.restrictedflag {filter:none;}</style> <![endif]--> <link rel="canonical" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549" /> <link rel="alternate" hreflang="el" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=el" /> <link rel="alternate" hreflang="fr" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=fr" /> <link rel="alternate" hreflang="bg" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=pt" /> <link rel="alternate" hreflang="no" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=no" /> <link rel="alternate" hreflang="hr" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=hr" /> <link rel="alternate" hreflang="ca" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=ca" /> <link rel="alternate" hreflang="de" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=de" /> <link rel="alternate" hreflang="it" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=it" /> <link rel="alternate" hreflang="zh-CN" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=sv" /> <link rel="alternate" hreflang="sk" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=sk" /> <link rel="alternate" hreflang="en" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=en" /> <link rel="alternate" hreflang="pl" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=pl" /> <link rel="alternate" hreflang="ru" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=ru" /> <link rel="alternate" hreflang="ka" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=ka" /> <link rel="alternate" hreflang="ja" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=ja" /> <link rel="alternate" hreflang="es" href="http://cds.cern.ch/ejournals.py?publication=J.+Phys.+A&volume=21&year=1988&page=1549&ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="http://cds.cern.ch/rss" /> <link rel="search" type="application/opensearchdescription+xml" href="http://cds.cern.ch/opensearchdescription" title="CERN Document Server" /> <link rel="unapi-server" type="application/xml" title="unAPI" href="http://cds.cern.ch/unapi" /> <link rel="apple-touch-icon" href="/apple-touch-icon.png"/> <link rel="apple-touch-icon-precomposed" href="/apple-touch-icon-precomposed.png"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="en" /> <meta name="description" content="" /> <meta name="keywords" content="" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script> <!-- WebNews CSS library --> <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" /> <!-- WebNews JS library --> <script type="text/javascript" src="https://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <style></style> </head> <body class="admin" lang="en"> <!-- toolbar starts --> <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=en&referer=https%3A//cds.cern.ch/ejournals.py%3Fpublication%3DJ.%2BPhys.%2BA%26volume%3D21%26year%3D1988%26page%3D1549" 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> <!-- toolbar ends --> <!-- Nav header starts--> <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><!-- /#name-and-slogan --> <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 "><a class="" href="http://cds.cern.ch/?ln=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="http://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="http://cds.cern.ch/help/?ln=en">Help</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=en">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=en">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=en">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=en">Your searches</a></li></ul></li> </ul> </div> </div> </div> <!-- Nav header ends--> <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=en" class="navtrail">Home</a> > 404 Not Found </td> </tr> </table> </div> <div class="pagebody"> <div class="pagebodystripeleft"> <div class="pageboxlefttop"></div> <div class="pageboxlefttopadd"></div> <div class="pageboxleftbottomadd"></div> <div class="pageboxleftbottom"></div> </div> <div class="pagebodystriperight"> <div class="pageboxrighttop"></div> <div class="pageboxrighttopadd"></div> <div class="pageboxrightbottomadd"></div> <div class="pageboxrightbottom"></div> </div> <div class="pagebodystripemiddle"> <div class="headline_div"><h1 class="headline">404 Not Found</h1></div> <p>The server encountered an error while dealing with your request.</p> <p></p> <p>In case of doubt, please contact <a href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service</a>.</p> </div> <div class="clear"></div> </div> <footer id="footer" class="pagefooter clearfix"> <!-- replaced page footer --> <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="http://cds.cern.ch/?ln=en">Search</a> :: <a class="footer" href="http://cds.cern.ch/submit?ln=en">Submit</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> :: <a class="footer" href="http://cds.cern.ch/help/?ln=en">Help</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Maintained by <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? Contact <a href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Support</a>. <br /> </div> <div class="pagefooterstriperight"> <div class="cern-logo"> <a id="logo" href="http://cern.ch" title="CERN" rel="CERN" ><img src="https://cds.cern.ch/img/cern_theme/img/cern-logo-large.png" alt="CERN" /></a> </div> <div class="cern-languagebox"> This site is also available in the following languages:<br /><a href="/ejournals.py?volume=21&ln=bg&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Български</a> <a href="/ejournals.py?volume=21&ln=ca&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Català</a> <a href="/ejournals.py?volume=21&ln=de&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Deutsch</a> <a href="/ejournals.py?volume=21&ln=el&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Ελληνικά</a> <span class="langinfo">English</span> <a href="/ejournals.py?volume=21&ln=es&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Español</a> <a href="/ejournals.py?volume=21&ln=fr&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Français</a> <a href="/ejournals.py?volume=21&ln=hr&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Hrvatski</a> <a href="/ejournals.py?volume=21&ln=it&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Italiano</a> <a href="/ejournals.py?volume=21&ln=ja&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">日本語</a> <a href="/ejournals.py?volume=21&ln=ka&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">ქართული</a> <a href="/ejournals.py?volume=21&ln=no&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Norsk/Bokmål</a> <a href="/ejournals.py?volume=21&ln=pl&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Polski</a> <a href="/ejournals.py?volume=21&ln=pt&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Português</a> <a href="/ejournals.py?volume=21&ln=ru&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Русский</a> <a href="/ejournals.py?volume=21&ln=sk&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Slovensky</a> <a href="/ejournals.py?volume=21&ln=sv&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">Svenska</a> <a href="/ejournals.py?volume=21&ln=zh_CN&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">中文(简)</a> <a href="/ejournals.py?volume=21&ln=zh_TW&publication=J.+Phys.+A&page=1549&year=1988" class="langinfo">中文(繁)</a> </div> </div> <!-- replaced page footer --> </footer> <script type="text/javascript"> var SyndeticsBookCovers = (function() { var SMALL_SIZE = "sc.gif", MEDIUM_SIZE = "mc.gif", RAW_URL = "https://secure.syndetics.com/index.aspx?isbn=THEISBN/THESIZE&client=cernlibrary"; replaceCover = function(imgElement, isbns, hdFormat) { var img = new Image(), size = hdFormat ? MEDIUM_SIZE : SMALL_SIZE; var _isbns = isbns.sort(function(a, b) { // sort from shortest to longest ISBN (more modern) return a.length > b.length ? 1 : -1; }); function next() { var isbn = _isbns.pop(); if (isbn) { var url = RAW_URL.replace("THEISBN", isbn).replace("THESIZE", size); img.src = url; } } function done() { imgElement.src = img.src; } img.onload = function() { if (this.width > 1) { done(); } else { next(); } }; next(); }; return { replaceCover: replaceCover }; })(); $(document).ready(function() { // get book covers $("img.book-cover").each(function() { var $this = $(this), strIsbns = $this.data("isbns") || "", isbnsArray = String(strIsbns).split(","), hdFormat = $this.hasClass("hd"); SyndeticsBookCovers.replaceCover(this, isbnsArray, hdFormat); }); // WebNews tooltips $.ajax({ url: "/news/tooltips", success: function(data) { create_tooltips(data); }, dataType: "json", cache: false }); }); </script> <!-- Feedback script --> <script src="//cds.cern.ch/js/feedback.js"></script> <!-- Feedback script --> <!-- Matomo --> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="https://webanalytics.web.cern.ch/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '756']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script> <!-- End Matomo Code --> </body> </html>