<?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>S0035-001X2016000500475</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Analyses of low energy &#960;+&#8722;12C, 16O elastic scattering data using inverse scattering theory and suggested scaling method]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Shehadeh]]></surname>
<given-names><![CDATA[Zuhair F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[El-Shawaf]]></surname>
<given-names><![CDATA[Reham M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Taif University Physics Department ]]></institution>
<addr-line><![CDATA[Taif ]]></addr-line>
<country>Saudi Arabia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2016</year>
</pub-date>
<volume>62</volume>
<numero>5</numero>
<fpage>475</fpage>
<lpage>483</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2016000500475&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2016000500475&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2016000500475&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The elastic scattering data for low-energy (T&#960; &#8804; 80 MeV) positive pions from carbon-12 and oxygen-16 nuclei has been successfully analyzed by using our local optical potential based on the inverse scattering theory within the framework of the full Klein-Gordon equation. It is found that the same potential parameters used in the &#960;&#8722;&#8722;12C, cases are still valid for &#960;+&#8722;12C with a need to change the three parameters R0, V1 and W3 with the pion&#8217;s incident kinetic energy T&#960;. This is also found to hold in analyzing successfully the measured angular distributions for &#960;+&#8722;16O in the same energy region. The systematic trends in the changed three free potential parameters R0, V1 and W3 with T&#960; are compared to their counterparts for &#960;+&#8722;12C. The different relations obtained for the two cases under consideration, &#960;+&#8722;12C and &#960;+&#8722;16O, reveals their dependence on the atomic weight of the target nucleus. As such, this suggests the use of a scaling method to obtain the potential parameters for a certain pion-nucleus system, as &#960;+&#8722;16O, from a similar nearby one, as &#960;+&#8722;12C. Further studies are needed to confirm our new findings.]]></p></abstract>
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<kwd lng="en"><![CDATA[inverse scattering theory]]></kwd>
<kwd lng="en"><![CDATA[scaling method]]></kwd>
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