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Hi Sean,</div>
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I've checked two straight track runs: run040847 in 2018 and run011048 in 2016, using the same tracking code (halld_recon).</div>
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Only run040847 shows high left-right mis-selection rate in the FDC tracking, and I'm suspecting that this might be related to the timing calibration.</div>
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I'm sending one picture as an attachment.</div>
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This figure shows drift time distributions for the two straight track runs (& one field-on run).</div>
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The distribution for the run040847 is shifted compared to the run011048, and I'd like to know the t0 calibration status of this run040847. Is this run calibrated in the same way for the run011048?</div>
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Best regards,</div>
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Keigo</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Sean Dobbs <sdobbs@fsu.edu><br>
<b>Sent:</b> Friday, February 7, 2020 11:22 AM<br>
<b>To:</b> Lubomir Pentchev <pentchev@jlab.org><br>
<b>Cc:</b> halld-tracking-hw <halld-tracking-hw@jlab.org>; Keigo Mizutani <keigo@jlab.org><br>
<b>Subject:</b> [EXTERNAL] Re: [Halld-tracking-hw] slot for DC alignment talk</font>
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<div class="PlainText">It looks like there should be room, so I added in 15 minutes for Keigo<br>
to talk. Perhaps it just reduces the size of the coffee break.<br>
<br>
I don't mind answering questions regarding the timing, but the DC<br>
meeting overlaps with my class time this semester. So perhaps Keigo<br>
can send me (or whoever else is related) an email, or we can set up a<br>
separate BlueJeans meeting.<br>
<br>
Cheers,<br>
Sean<br>
<br>
<br>
On Fri, Feb 7, 2020 at 11:11 AM Lubomir Pentchev <pentchev@jlab.org> wrote:<br>
><br>
> Hi all,<br>
><br>
> At the tracking meeting yesterday<br>
><br>
> <a href="https://halldweb.jlab.org/wiki/index.php/Meeting-2-6-2020">https://halldweb.jlab.org/wiki/index.php/Meeting-2-6-2020</a><br>
><br>
> Keigo presented interesting results showing his progress with the DC alignment and at the same time he had some questions related to the timing calibration of the relevant detectors. We decided that it would be helpful to present his progress at the collaboration
meeting. He needs 10-15 min, however at this moment there are no open slots for his talk.<br>
><br>
> Can we reshuffle the talks at the detector session (there's no organizer there in the agenda) and around so that we can give him 15min?<br>
><br>
> Thanks,<br>
> Lubomir<br>
><br>
> _______________________________________________<br>
> Halld-tracking-hw mailing list<br>
> Halld-tracking-hw@jlab.org<br>
> <a href="https://mailman.jlab.org/mailman/listinfo/halld-tracking-hw">https://mailman.jlab.org/mailman/listinfo/halld-tracking-hw</a><br>
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