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<p class="MsoNormal">Hi Liping,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I mean real Compton scattering with photon beam.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:black">-Eugene</span><o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Gan, Liping <ganl@uncw.edu> <br>
<b>Sent:</b> Saturday, August 26, 2023 15:06<br>
<b>To:</b> prad@jlab.org; pi0tff@jlab.org; Eugene Pasyuk <pasyuk@jlab.org><br>
<b>Subject:</b> [EXTERNAL] Re: calibration<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Hi, Eugene,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Do you mean the virtual Compton scattering with an electron beam? If yes, we will need measure three particles in the final state, not two particles as we did for
the case of PrimEx.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">best,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Liping<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> PRad <<a href="mailto:prad-bounces@jlab.org">prad-bounces@jlab.org</a>> on behalf of Eugene Pasyuk via PRad <<a href="mailto:prad@jlab.org">prad@jlab.org</a>><br>
<b>Sent:</b> Friday, August 25, 2023 6:35 PM<br>
<b>To:</b> <a href="mailto:prad@jlab.org">prad@jlab.org</a> <<a href="mailto:prad@jlab.org">prad@jlab.org</a>>;
<a href="mailto:pi0tff@jlab.org">pi0tff@jlab.org</a> <<a href="mailto:pi0tff@jlab.org">pi0tff@jlab.org</a>><br>
<b>Subject:</b> [PRad] calibration</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p><b><span style="color:#007073">[<i>This email originated from outside of UNCW</i>]</span></b><span style="color:#007073"><o:p></o:p></span></p>
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<p class="xmsonormal">I have one more idea for HyCal calibration. If we use pi0 photoproduction, we simultaneously will have Compton scattering on atomic electrons. Remember we did this in PrimEx with the dipole magnet off. Nice 2-body reaction.<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal"><span style="color:black">-Eugene</span><o:p></o:p></p>
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