<?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>S0035-001X2007001000026</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Quintessence with induced gravity]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cervantes-Cota]]></surname>
<given-names><![CDATA[J.L]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas Ávila]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Nacional de Investigaciones Nucleares Depto. de Física ]]></institution>
<addr-line><![CDATA[México D.F]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2007</year>
</pub-date>
<volume>53</volume>
<fpage>137</fpage>
<lpage>143</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2007001000026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2007001000026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2007001000026&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We study the cosmic evolution in recent times within the induced gravity theory. Taking into account the experimental constraints on the parameter of the theory, we study the quintessence dynamics. We obtain the possible models and discuss the physical consequences in cosmology and particle physics.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se estudia la evolución cosmológica en épocas actuales en la teoría de gravedad inducida. Dadas las constricciones experimentales sobre los parámetros de la teoría, se estudia la dinámica de quintaesencia del modelo. Se obtienen los posibles modelos y se discuten sus consecuencias en física de partículas y cosmología.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cosmology]]></kwd>
<kwd lng="en"><![CDATA[quintessence]]></kwd>
<kwd lng="en"><![CDATA[dark energy]]></kwd>
<kwd lng="en"><![CDATA[induced gravity]]></kwd>
<kwd lng="es"><![CDATA[Cosmología]]></kwd>
<kwd lng="es"><![CDATA[quintaesencia]]></kwd>
<kwd lng="es"><![CDATA[energía oscura]]></kwd>
<kwd lng="es"><![CDATA[gravedad inducida]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Quintessence with induced gravity</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>J.L. Cervantes&#150;Cota and J. Rosas &Aacute;vila</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Depto. de F&iacute;sica, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18&#150;1027, M&eacute;xico D.F. 11801, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 1 de mayo de 2006    <br>   Aceptado el 1 de noviembre de 2006</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">We study the cosmic evolution in recent times within the induced gravity theory. Taking into account the experimental constraints on the parameter of the theory, we study the quintessence dynamics. We obtain the possible models and discuss the physical consequences in cosmology and particle physics.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Cosmology; quintessence; dark energy; induced gravity.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Se estudia la evoluci&oacute;n cosmol&oacute;gica en &eacute;pocas actuales en la teor&iacute;a de gravedad inducida. Dadas las constricciones experimentales sobre los par&aacute;metros de la teor&iacute;a, se estudia la din&aacute;mica de quintaesencia del modelo. Se obtienen los posibles modelos y se discuten sus consecuencias en f&iacute;sica de part&iacute;culas y cosmolog&iacute;a.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Cosmolog&iacute;a; quintaesencia; energ&iacute;a oscura; gravedad inducida. </font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 98.80.&#150;k; 95.35.+d</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v53s4/v53s4a26.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgments</b></font></p>     <p align="justify"><font face="verdana" size="2">This work had financial support from CONACyT, project number 44917.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. A.G. Riess <i>et al., Ap J </i><b>607</b> (2004) 665.</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=8341730&pid=S0035-001X200700100002600001&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. P. Astier, <i>et al.</i>, <i>Astron. 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