<?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>S0035-001X2006000700006</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Spin dependent electron scattering with the BLAST detector]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alarcón]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Arizona State University Department of Physics and Astronomy ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2006</year>
</pub-date>
<volume>52</volume>
<fpage>26</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2006000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2006000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2006000700006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The Bates Large Acceptance Spectrometer Toroid experiment, BLAST, at the MIT-Bates Linear Accelerator Laboratory was designed to study in a systematic manner the spin-dependent electro-magnetic interaction in few-nucleon systems at momentum transfers below 1 GeV/c. Utilizing a polarized electron beam; highly polarized, internal gas targets of H and D; and a symmetric detector configuration: BLAST is able to make simultaneous measurements of several reaction channels for different combinations of beam helicity and target polarization (vector for H, both vector and tensor for D). BLAST will provide new data on the nucleon and deuteron form factors as well as study few body physics and pion production. Preliminary results are presented.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[El experimento Bates Large Acceptance Spectrometer toroid (BLAST) en el laboratorio MIT-Bates ha sido diseñado para estudiar en forma sistemática la interacción electromagnética dependiente del spin. El enfoque es en sistemas con pocos nucleones y a transferencias de momentum menores de 1 (GeV/c). BLAST utiliza electrones polarizados, blancos altamente polarizados de gases internos de hidrógeno y deuterio, y una configuración simétrica de detectores. De esta manera BLAST es capable de mediciones simultáneas en varias reacciones y con diferentes combinaciones de polarizaciones entre el haz de electrones y los blancos de hidrógeno y deuterio. BLAST proveerá datos de estructura del nucleón y el deuterón. Se presentan aquí resultados preliminares.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Electron scattering]]></kwd>
<kwd lng="en"><![CDATA[polarization]]></kwd>
<kwd lng="en"><![CDATA[form factors]]></kwd>
<kwd lng="es"><![CDATA[Scattering de electrones]]></kwd>
<kwd lng="es"><![CDATA[polarización]]></kwd>
<kwd lng="es"><![CDATA[estructura del nucleón]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Spin dependent electron scattering with the BLAST detector</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>R. Alarc&oacute;n*, for the BLAST Collaboration</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Department of Physics and Astronomy, Arizona State University, Tempe, AZ 85287&#150;1504, USA.</i></font></p>     <p align="justify"><font face="verdana" size="2">* Work supported under NSF Awards 0099422 and 0354878.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 30 de enero de 2005    <br>   Aceptado el 2 de abril de 2005</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The Bates Large Acceptance Spectrometer Toroid experiment, BLAST, at the MIT&#150;Bates Linear Accelerator Laboratory was designed to study in a systematic manner the spin&#150;dependent electro&#150;magnetic interaction in few&#150;nucleon systems at momentum transfers below 1 GeV/c. Utilizing a polarized electron beam; highly polarized, internal gas targets of H and D; and a symmetric detector configuration: BLAST is able to make simultaneous measurements of several reaction channels for different combinations of beam helicity and target polarization (vector for H, both vector and tensor for D). BLAST will provide new data on the nucleon and deuteron form factors as well as study few body physics and pion production. Preliminary results are presented.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Electron scattering; polarization; form factors.</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">El experimento Bates Large Acceptance Spectrometer toroid (BLAST) en el laboratorio MIT&#150;Bates ha sido dise&ntilde;ado para estudiar en forma sistem&aacute;tica la interacci&oacute;n electromagn&eacute;tica dependiente del spin. El enfoque es en sistemas con pocos nucleones y a transferencias de momentum menores de 1 (GeV/c). BLAST utiliza electrones polarizados, blancos altamente polarizados de gases internos de hidr&oacute;geno y deuterio, y una configuraci&oacute;n sim&eacute;trica de detectores. De esta manera BLAST es capable de mediciones simult&aacute;neas en varias reacciones y con diferentes combinaciones de polarizaciones entre el haz de electrones y los blancos de hidr&oacute;geno y deuterio. BLAST proveer&aacute; datos de estructura del nucle&oacute;n y el deuter&oacute;n. Se presentan aqu&iacute; resultados preliminares.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Scattering de electrones; polarizaci&oacute;n; estructura del nucle&oacute;n.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 25.30.&#150;c; 25.30.Rw; 29.25.&#150;t; 29.30.&#150;h</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v52s1/v52s1a6.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></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. T.W. Donnelly and A.S. Raskin, <i>Annals of Physics </i><b>169 </b>(1986) 247;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8323502&pid=S0035-001X200600070000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> A.S. Raskin and T.W. Donnelly, <i>Annals of Physics </i><b>191 </b>(1989) 78.</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=8323503&pid=S0035-001X200600070000600002&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. M.N. Rosenbluth, <i>Phys. Rev. </i><b>79</b> (1950) 615.</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=8323504&pid=S0035-001X200600070000600003&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. R.G. Arnold <i>et al., Phys. Rev. C </i><b>23</b> (1981) 363.</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=8323505&pid=S0035-001X200600070000600004&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. M.K. Jones <i>et al., Phys. Rev. Lett. </i><b>84</b> (2000) 1398.</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=8323506&pid=S0035-001X200600070000600005&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. O. Gayou <i>et al., Phys. Rev. C </i><b>64</b> (2001) 038202.</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=8323507&pid=S0035-001X200600070000600006&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. O. Gayou <i>et al.</i>, <i>Phys. Rev. Lett. </i><b>88</b> (2002) 092301.</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=8323508&pid=S0035-001X200600070000600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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