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Hi All,</div>
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Here is the "Tracking in Backgroud" study I mentioned during today's meeting done by Shujie:
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__indico.bnl.gov_event_29753_contributions_113484_attachments_64699_111154_background-5Fanalysis-5FtrackingWG-5F09112025-2D2.pdf&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=kKOGfNal4wzqyQNnWX-XQVyUxcj28nPul00OoEMExo6cEUibqCkZ95RP6rvlHQlP&s=eIQ5RacPMqtfkwbrp3vRIdlN6LHA_Ic9lL_ru_O9gEQ&e=">
https://indico.bnl.gov/event/29753/contributions/113484/attachments/64699/111154/background_analysis_trackingWG_09112025-2.pdf</a></div>
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Slide 3 shows the different distributions, where the sync. rad is by far the dominate source (just outside the beam pipe surface). </div>
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There are ROOT files available that merge signal + background, which are produced in the sim campaigns and can be found using the method discussed in the first couple FAQs:
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__eic.github.io_documentation_faq.html&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=kKOGfNal4wzqyQNnWX-XQVyUxcj28nPul00OoEMExo6cEUibqCkZ95RP6rvlHQlP&s=SC_nKVFMMY9sVcQtRnWfKneYISubS-NqzkJpzXP-IHA&e=">https://eic.github.io/documentation/faq.html</a></div>
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For example: There is a merged background file at: </div>
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volatile/eic/EPIC/RECO/25.07.0/epic_craterlake/BACKGROUNDS/MERGED/HEPMC_merger-1.0.2/10x100/RealisticSignalPerFrame/HEPMC_merger-1.0.2_bgmerged_RealisticSignalPerFrame_MinBias_pythia6_10x100_egas_bgas.0030.eicrecon.edm4eic.root</div>
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One can also access individual background rootfiles as well. These files will contain the raw and reco hits for each detector.</div>
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My understanding is that with the October campaign these rootfiles will have all backgrounds merged.</div>
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Thanks,<br>
Matt</div>
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Matt Posik</div>
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Research Associate Professor </div>
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Temple University </div>
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Department of Physics</div>
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SERC </div>
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1925 N. 12th St.</div>
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Philadelphia, PA 19122</div>
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USA</div>
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TU Office: SERC Room 451</div>
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<span style="background-color: rgb(255, 255, 255);">Physics Office: SERC Room 406/4th Floor</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Erd108 <erd108-bounces@jlab.org> on behalf of Kondo Gnanvo <kagnanvo@jlab.org><br>
<b>Sent:</b> Wednesday, October 1, 2025 2:55 PM<br>
<b>To:</b> erd108@jlab.org <erd108@jlab.org><br>
<b>Subject:</b> [External] [Erd108] MPGD-DSC General meeting - Thursday October 2nd at 9 am</font>
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<p class="x_MsoNormal"><span style="color:black">Dear all, </span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">We will have our monthly MPGD-DSC General meeting on tomorrow Thursday October 2<sup>nd</sup> at 9 am.
</span></p>
<p class="x_MsoNormal"><span style="color:black">Please find details below with the items on the agenda to discuss. We will go to the different subsystem update</span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">Best regards, </span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">Kondo</span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black"> </span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">=====</span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">Wiki : </span><u><span style="color:purple"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__wiki.bnl.gov_eic_index.php_Eic-2Drd-2Dmeeting&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=kKOGfNal4wzqyQNnWX-XQVyUxcj28nPul00OoEMExo6cEUibqCkZ95RP6rvlHQlP&s=wEuHyYysOXjSrfobQ0_kDbAFdLCkq6YXt9NO2hCWKWY&e=" originalsrc="https://wiki.bnl.gov/eic/index.php/Eic-rd-meeting" target="_blank"><span style="color:purple">https://wiki.bnl.gov/eic/index.php/Eic-rd-meeting</span></a></span></u><span style="color:black"> </span><span style=""></span></p>
<p class="x_MsoNormal"><span style="color:black">Zoom: <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__virginia.zoom.us_j_91920338307-3Fpwd-3DTEF3VDhlVUN0UnBIY0xkeWxqMXprQT09&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=kKOGfNal4wzqyQNnWX-XQVyUxcj28nPul00OoEMExo6cEUibqCkZ95RP6rvlHQlP&s=D57alJdvJ2fH5UlYZsc0ZNYcrkt4eV0ZlL0Sq5UQgyU&e=" originalsrc="https://virginia.zoom.us/j/91920338307?pwd=TEF3VDhlVUN0UnBIY0xkeWxqMXprQT09">
<span style="color:blue">https://virginia.zoom.us/j/91920338307?pwd=TEF3VDhlVUN0UnBIY0xkeWxqMXprQT09</span></a></span><span style=""></span></p>
<p class="x_MsoNormal">Indico: <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__indico.bnl.gov_event_28407_&d=DwMFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=kKOGfNal4wzqyQNnWX-XQVyUxcj28nPul00OoEMExo6cEUibqCkZ95RP6rvlHQlP&s=Fi2cmvnfpGeo0LC_Y9W0PqeFIv3m-9yNAYKn7X7WtI8&e=" originalsrc="https://indico.bnl.gov/event/28407/">
https://indico.bnl.gov/event/28407/</a> </p>
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<p class="x_MsoNormal">Best regards </p>
<p class="x_MsoNormal">Kondo</p>
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