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Stepan,
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<div class="">It will be easy to see what's really happening on OSG. It will be probably impossible to determine what was really done in that note.
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<div class="">-Nathan</div>
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<div class="">On Dec 22, 2022, at 5:25 PM, Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>> wrote:</div>
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Nathan,</div>
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That was my point. We had the MC BG merging almost right before it moved to OSG. I do not remember if Nick checked his inclusive studies with the OSG setup.</div>
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Stepan<span class="Apple-converted-space"> </span><br class="">
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<font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Nathan Baltzell <<a href="mailto:baltzell@jlab.org" class="">baltzell@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, December 22, 2022 5:20 PM<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>><br class="">
<b class="">Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:Clas12_dileptons@jlab.org" class="">Clas12_dileptons@jlab.org</a> <<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>>; Raffaella De Vita <<a href="mailto:devita@jlab.org" class="">devita@jlab.org</a>><br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [Clas12_dileptons] Efficiency</font>
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Hi Stepan,
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<div class="">Unfortunately that note doesn't provide a straightforward way to reproduce it and even relies on many custom data and software installations in people's personal locations that no longer exist. </div>
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<div class="">-Nathan</div>
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<div class="">On Dec 22, 2022, at 5:02 PM, Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>> wrote:</div>
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Hi Nathan,</div>
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Yes, it is the report of the TF, and made to the CLAS12 Note arxive -<span class="x_Apple-converted-space"> </span><a href="https://misportal.jlab.org/mis/physics/clas12/viewFile.cfm/2020-005.pdf?documentId=70" id="LPlnk606732" class="">https://misportal.jlab.org/mis/physics/clas12/viewFile.cfm/2020-005.pdf?documentId=70</a><br class="">
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Stepan<br class="">
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<font face="Calibri, sans-serif" class="" style="font-size: 11pt;"><b class="">From:</b><span class="x_Apple-converted-space"> </span>Nathan Baltzell <<a href="mailto:baltzell@jlab.org" class="">baltzell@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="x_Apple-converted-space"> </span>Thursday, December 22, 2022 4:05 PM<br class="">
<b class="">To:</b><span class="x_Apple-converted-space"> </span>Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>><br class="">
<b class="">Cc:</b><span class="x_Apple-converted-space"> </span><a href="mailto:Clas12_dileptons@jlab.org" class="">Clas12_dileptons@jlab.org</a><span class="Apple-converted-space"> </span><<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>>;
Raffaella De Vita <<a href="mailto:devita@jlab.org" class="">devita@jlab.org</a>><br class="">
<b class="">Subject:</b><span class="x_Apple-converted-space"> </span>Re: [Clas12_dileptons] Efficiency</font>
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Hi Stepan,
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<div class="">Is there any documentation on those previous studies? How exactly was it done?</div>
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<div class="">-Nathan<br class="">
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<div class="">On Dec 22, 2022, at 4:00 PM, Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>> wrote:</div>
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<div class="" style="word-wrap: break-word; line-break: after-white-space;">Hi Nathan
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<div class="">We had a much better description of MC efficiency dependence on the beam current in the past. Nick was testing the algorithm for inclusive electron MC and was very close to the expectations from data, within a couple of %. The version on OSG is
different from what we used during TF work and significantly underestimates efficiency drop.</div>
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<div class="">Regards, Stepan </div>
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<div class="">On Dec 22, 2022, at 3:31 PM, Nathan Baltzell via Clas12_dileptons <<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>> wrote:</div>
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<div class="" style="word-wrap: break-word; line-break: after-white-space;">Hi Pierre,
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<div class="">Yes, nice presentation!
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<div class="">Regarding questions on CLAS12 background merging ...</div>
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<div class="">My understand is that it currently does two things: adds background hits and accounts for a<font class=""><span class=""> holdoff time (rejecting hits that are too close in time to a previous hit on the same channel). I know we thought the holdoffs
were modeled well for DC, because that's where the holdoffs were presumed to be most important, but I'm not sure about all the other detectors.</span></font></div>
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<div class="">But one thing I know it doesn't do is account for time evolution in digitization (and the same goes for GEMC and its internal background). If multiple hits would have merged in hardware, that is not addressed properly but left interpreted as
two separate hits. Maybe/probably that's not too important for detectors that don't use energy deposition offline and/or have a large holdoff time, like DC, but it would get more important at higher rates/luminosity.</div>
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<div class="">-Nathan<br class="">
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<div class="">On Dec 22, 2022, at 2:13 PM, Valery Kubarovsky via Clas12_dileptons <<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>> wrote:</div>
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<span class="" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Hi Pierre,</span></div>
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<span class="" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">You made a very good presentation today.</span></div>
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<span class="x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">I think that we can verify the main assumption of Stepan's paper "Studies of background with the scattered electron"
that the efficiency is the product of individual efficiencies of the electrons, positrons and protons;</span></div>
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<span class="x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">using your MC model. What do you think?</span></div>
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<span class="x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">You have to use MC with BG merging.</span></div>
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<span class="x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Thanks,</span></div>
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<span class="x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Valery</span></div>
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<font face="Calibri, sans-serif" class="" style="font-size: 11pt;"><b class="">From:</b><span class="x_x_Apple-converted-space"> </span>Clas12_dileptons <<a href="mailto:clas12_dileptons-bounces@jlab.org" class="">clas12_dileptons-bounces@jlab.org</a>> on behalf
of Rafayel Paremuzyan via Clas12_dileptons <<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="x_x_Apple-converted-space"> </span>Monday, December 19, 2022 16:51<br class="">
<b class="">To:</b><span class="x_x_Apple-converted-space"> </span><a href="mailto:Clas12_dileptons@jlab.org" class="">Clas12_dileptons@jlab.org</a><span class="x_x_Apple-converted-space"> </span><<a href="mailto:clas12_dileptons@jlab.org" class="">clas12_dileptons@jlab.org</a>><br class="">
<b class="">Subject:</b><span class="x_x_Apple-converted-space"> </span>[Clas12_dileptons] Meeting tomorrow</font>
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<div class="x_x_x_elementToProof"><span class="x_x_x_ContentPasted0" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">Dear all,</span></div>
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<div class="x_x_x_ContentPasted0">let's meet tomorrow.</div>
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<div class="x_x_x_ContentPasted0">Please put your material at the link below.</div>
<div class="x_x_x_ContentPasted0 x_x_x_ContentPasted1"><a href="https://clasweb.jlab.org/rungroups/tlc/wiki/index.php/Meet_December_20_22" id="LPlnk948277" class="">https://clasweb.jlab.org/rungroups/tlc/wiki/index.php/Meet_December_20_22</a></div>
<div class="x_x_x_ContentPasted0">The meeting room at JLab is F-228.</div>
<div class="x_x_x_ContentPasted0">Meeting link is :</div>
<div class="x_x_x_ContentPasted0"><a href="https://jlab-org.zoomgov.com/j/1617534470?pwd=UkR3RlZOSVk3V1RQY2JnMUdIM3RMUT09" class="">https://jlab-org.zoomgov.com/j/1617534470?pwd=UkR3RlZOSVk3V1RQY2JnMUdIM3RMUT09</a></div>
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<div class="x_x_x_ContentPasted0">Meetng ID 161 753 4470</div>
<div class="x_x_x_ContentPasted0">passcode is 2022</div>
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<span class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; float: none; display: inline !important;">_______________________________________________</span><br class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">
<span class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; float: none; display: inline !important;">Clas12_dileptons
mailing list</span><br class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">
<a href="mailto:Clas12_dileptons@jlab.org" class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Clas12_dileptons@jlab.org</a><br class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">
<a href="https://mailman.jlab.org/mailman/listinfo/clas12_dileptons" class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">https://mailman.jlab.org/mailman/listinfo/clas12_dileptons</a></div>
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_______________________________________________<br class="">
Clas12_dileptons mailing list<br class="">
<a href="mailto:Clas12_dileptons@jlab.org" class="">Clas12_dileptons@jlab.org</a><br class="">
<a href="https://mailman.jlab.org/mailman/listinfo/clas12_dileptons" class="">https://mailman.jlab.org/mailman/listinfo/clas12_dileptons</a></div>
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