<?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>S0035-001X2006000900036</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The Klein-Gordon equation with the Woods-Saxon potential well]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villalba]]></surname>
<given-names><![CDATA[V.M]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,IVIC Centro de Física ]]></institution>
<addr-line><![CDATA[Caracas ]]></addr-line>
<country>Venezuela</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>05</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>05</month>
<year>2006</year>
</pub-date>
<volume>52</volume>
<fpage>127</fpage>
<lpage>129</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2006000900036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2006000900036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2006000900036&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We solve the Klein-Gordon equation in the presence of a spatially one-dimensional Woods-Saxon potential. The bound state solutions are derived. The pair creation mechanism and the antiparticle bound state are discussed.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se resuelve la ecuación de Klein-Gordon para el potencial de Woods-Saxon unidimensional independiente del tiempo. Se derivan las soluciones para los estados ligados. Se discute la creación de pares y los estados ligados de antipartículas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Klein-Gordon equation]]></kwd>
<kwd lng="en"><![CDATA[Woods-Saxon potential]]></kwd>
<kwd lng="es"><![CDATA[Ecuación de Klein-Gordon]]></kwd>
<kwd lng="es"><![CDATA[potencial de Woods-Saxon]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">F&iacute;sica Te&oacute;rica </font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>The Klein&#150;Gordon equation with the Woods&#150;Saxon potential well</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>C. Rojas and V.M. Villalba</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Centro de F&iacute;sica, IVIC, Apartado 21827, Caracas 1020A, Venezuela</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 10 de diciembre de 2001    <br> Aceptado el 20 de abril de 2005</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>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">We solve the Klein&#150;Gordon equation in the presence of a spatially one&#150;dimensional Woods&#150;Saxon potential. The bound state solutions are derived. The pair creation mechanism and the antiparticle bound state are discussed.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Klein&#150;Gordon equation; Woods&#150;Saxon potential.</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 resuelve la ecuaci&oacute;n de Klein&#150;Gordon para el potencial de Woods&#150;Saxon unidimensional independiente del tiempo.   Se derivan las soluciones para los estados ligados. Se discute la creaci&oacute;n de pares y los estados ligados de antipart&iacute;culas.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Ecuaci&oacute;n de Klein&#150;Gordon; potencial de Woods&#150;Saxon. </font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2">PACS: 03.65.Pm; 03.65.Ge; 03.65.Nk</font></p>     ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v52s3/v52s3a36.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgment</b></font></p>     <p align="justify"><font face="verdana" size="2">This work was supported by FONACIT under project G&#150;2001000712.</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. J. Rafelski, L.P. Fulcher, and A. Klein, <i>Phys. Rep. </i><b>38</b> (1978) 227.</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=8326862&pid=S0035-001X200600090003600001&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. L.I. Schiff, H. Snyder, and J. Weinberg, <i>Phys. Rev. </i><b>57</b> (1940) 315.</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=8326863&pid=S0035-001X200600090003600002&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">3. M. Bawin, <i>Lett. Nuovo Cimento </i><b>26</b> (1979) 586.</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=8326864&pid=S0035-001X200600090003600003&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">4. W. Greiner, <i>Relativistic Quantum Mechanics. Wave equations </i>(Springer, 1987).</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=8326865&pid=S0035-001X200600090003600004&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">5. P. Kennedy, <i>J. Phys. A </i><b>35</b> (2002) 689.</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=8326866&pid=S0035-001X200600090003600005&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">6. M. Abramowitz and I.A. Stegun, <i>Handbook of Mathematical Functions </i>(Dover, 1965).</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=8326867&pid=S0035-001X200600090003600006&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">7. V.S. Popov, <i>Sov. Phys. JETP </i><b>32</b> (1971) 526.</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=8326868&pid=S0035-001X200600090003600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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