<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2002000600002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effective magnetic moment of neutrinos in strong magnetic fields]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Martínez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Masood]]></surname>
<given-names><![CDATA[Samina S.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Rojas]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gaitán]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Romo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto de Matemática Cibernética y Física  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Quaid-i-Azam University  ]]></institution>
<addr-line><![CDATA[Islamabad ]]></addr-line>
<country>Pakistán</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Centro de Investigaciones Teóricas]]></institution>
<addr-line><![CDATA[Cuautitlán Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2002</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2002</year>
</pub-date>
<volume>48</volume>
<numero>6</numero>
<fpage>501</fpage>
<lpage>503</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2002000600002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2002000600002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2002000600002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this paper we compute the effective magnetic moment of neutrinos propagating in dense high magnetized medium. Taking typical values of magnetic field and densities of astrophysical objects (such as the cores of supernovae and neutron stars) we obtain an effective type of dipole magnetic moment in agreement with astrophysical and cosmological bounds.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[En el artículo se calcula el momento magnético efectivo de los neutrinos que se propagan en un medio denso y altamente magnetizado. Para ello se tomaron valores típicos del campo magnético y densidades presentes en objetos astrofísicos, tales como núcleos de supernovas y estrellas neutrónicas. Bajo estas condiciones se obtiene un valor para el momento magnético efectivo que se corresponde con las cotas astrofísicas y cosmológicas aceptadas en la literatura.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Strong magnetic fields]]></kwd>
<kwd lng="en"><![CDATA[neutrinos]]></kwd>
<kwd lng="en"><![CDATA[magnetic moment]]></kwd>
<kwd lng="es"><![CDATA[Campos magnéticos intensos]]></kwd>
<kwd lng="es"><![CDATA[neutrinos]]></kwd>
<kwd lng="es"><![CDATA[momento magnético]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>  	    <p>&nbsp;</p>  	    <p align="center"><font face="verdana" size="4"><b>Effective magnetic moment of neutrinos in strong magnetic fields</b></font></p>  	    <p>&nbsp;</p>  	    <p align="center"><font face="verdana" size="2"><b>A. P&eacute;rez&#45;Mart&iacute;nez<sup>1</sup>, Samina S. Masood<sup>2</sup>, H. P&eacute;rez Rojas<sup>1</sup>, R. Gait&aacute;n<sup>3</sup>, S. Rodr&iacute;guez&#45;Romo<sup>3</sup></b></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Instituto de Matem&aacute;tica Cibern&eacute;tica y F&iacute;sica Calle E Esq. a 15, No. 309. Vedado C. Habana, Cuba.</i></font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Phys. Dept. Quaid&#45;i&#45;Azam University, Islamabad, Pakist&aacute;n.</i></font></p>  	    <p align="justify"><font face="verdana" size="2"><i><i><sup>3</sup></i></i> <i>Centro de Investigaciones Te&oacute;ricas Facultad de Estudios Superiores, Universidad Nacional Aut&oacute;noma de M&eacute;xico Apdo. Post. 142, Cuautitl&aacute;n&#45;Izcalli, Edo. Mex., M&eacute;xico.</i></font></p>  	    ]]></body>
<body><![CDATA[<p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2">Recibido el 23 de noviembre de 2001.    <br> 	Aceptado el 1 de agosto de 2002.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">In this paper we compute the effective magnetic moment of neutrinos propagating in dense high magnetized medium. Taking typical values of magnetic field and densities of astrophysical objects (such as the cores of supernovae and neutron stars) we obtain an effective type of dipole magnetic moment in agreement with astrophysical and cosmological bounds.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Strong magnetic fields; neutrinos; magnetic moment.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En el art&iacute;culo se calcula el momento magn&eacute;tico efectivo de los neutrinos que se propagan en un medio denso y altamente magnetizado. Para ello se tomaron valores t&iacute;picos del campo magn&eacute;tico y densidades presentes en objetos astrof&iacute;sicos, tales como n&uacute;cleos de supernovas y estrellas neutr&oacute;nicas. Bajo estas condiciones se obtiene un valor para el momento magn&eacute;tico efectivo que se corresponde con las cotas astrof&iacute;sicas y cosmol&oacute;gicas aceptadas en la literatura.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Campos magn&eacute;ticos intensos; neutrinos; momento magn&eacute;tico.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2">PACS: 11.10.Wx; 13.15.+g; 14.60.Pq; 14.60.St</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v48n6/v48n6a2.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. V. Ginzburg, <i>High Energy Gamma Ray Astrophysics</i> (North Holland, Amsterdamm, 1991)</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8291065&pid=S0035-001X200200060000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. A. P&eacute;rez Mart&iacute;nez, H. P&eacute;rez Rojas, D. Oliva, A. Am&eacute;zaga and R. Rodr&iacute;guez Romo, <i>Int. J. of Mod. Phys. A</i> <b>15</b> (2000) 523.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8291066&pid=S0035-001X200200060000200002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
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