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Hi Pierre,</div>
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thank you for those studies.</div>
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I was quite surprised to see such a big difference going from "GEMC 4.4.2 + Coatjava 6.5.6.2" to "GEMC 5.1.0 + Coatjava 8.1.0"</div>
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If I am not wrong, GEMC 5 has extensively validated wrt GEMC 4, maybe it has to do with the Coatjava version?</div>
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Is it possible to check, which one make such big difference?</div>
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Rafo</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Pierre Chatagnon <pierrec@jlab.org><br>
<b>Sent:</b> Tuesday, January 24, 2023 9:04 AM<br>
<b>To:</b> Rafayel Paremuzyan <rafopar@jlab.org>; Clas12_dileptons@jlab.org <clas12_dileptons@jlab.org><br>
<b>Subject:</b> RE: No meeting tomorrow</font>
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<p class="x_MsoNormal">Hi everyone,</p>
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<p class="x_MsoNormal">Attached are the slides I was planning to show this morning.
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<p class="x_MsoNormal">I studied the particle efficiencies as a function of current for MC.
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<p class="x_MsoNormal">In a previous study, we saw a quite large discrepancy between efficiencies extracted from data and MC produced on OSG.</p>
<p class="x_MsoNormal">I redid this study with custom simulation ran on GEMC 4.4.2 and 5.1.0. It seems the latest leads to lower efficiencies, closer to the ones extracted from data. There is still some discrepancies however. I also noticed a large difference
of proton efficiency in the CD between both settings.</p>
<p class="x_MsoNormal">Please let me know what you think and I am really keen on new ideas to proceed.</p>
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<p class="x_MsoNormal">Cheers</p>
<p class="x_MsoNormal">Pierre</p>
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<p class="x_MsoNormal" style="border:none; padding:0in"><b>From: </b><a href="mailto:clas12_dileptons@jlab.org">Rafayel Paremuzyan via Clas12_dileptons</a><br>
<b>Sent: </b>Monday, January 23, 2023 6:18 PM<br>
<b>To: </b><a href="mailto:clas12_dileptons@jlab.org">Clas12_dileptons@jlab.org</a><br>
<b>Subject: </b>[Clas12_dileptons] No meeting tomorrow</p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:white">Hi all,</span></p>
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<p class="x_MsoNormal"><span class="x_contentpasted0"><span style="font-size:12.0pt; color:black; background:white">because of the ongoing "Jefferson Lab at 22 GeV" workshop, let's skip the meeting tomorrow,</span></span></p>
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<p class="x_MsoNormal"><span class="x_contentpasted0"><span style="font-size:12.0pt; color:black; background:white">however, if you have materials you want to share, please do so via e-mail.</span></span></p>
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<p class="x_MsoNormal"><span class="x_contentpasted0"><span style="font-size:12.0pt; color:black; background:white">Rafo</span></span></p>
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