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  • From: Richard Witt <witt AT usna.edu>
  • To: Star-tpc L <Star-tpc-l AT lists.bnl.gov>
  • Subject: [Star-tpc-l] TPC Meeting Minutes
  • Date: Thu, 20 Jul 2023 12:38:41 -0400


Present: Alexei, Flemming, Tommy, Yuri, Gene, Jim, and myself

== Hardware
— nothing new to report today
— only concern is about methane delivery 
— have about 30 days

== Electronics
— system continues to perform well
— test was done with TPC at 70 kHz (ZDC rate) for rare trigger program
— performed well
— no more problems than usual

== Software
— dAu and AuAu 17.3 SC calibrations are done (Run 21)
— 17.3 calibrations took only a day
— all information has been uploaded to dB
— large calibration productions have been produced from each of those datasets
— TPC dE/dx can now go forward
— no activity in SC from Run 22 and 23
— high luminosity coming, should check for GG leak since have best sensitivity there
— will be looking for changes to distortions due to different GG rate
— Event-by-event T0 in FXT data
— PWG has seen track breaking across central membrane in FXT data
— concern that may be T0 (but have not ruled out drift velocity)
— Gene looked at prompt hits (sent findings to list yesterday)
— only ~20% of events Irakli looked at may have issues (due to side of EPD used or 0 timing from chosen side)
— actual impact on dataset from that 20% is not easy to see
— Tommy suggested using simulations to determine expected effect
— Gene asked for a link to the presentation that originally reported the issue but we do not know which one
— dE/dx for FXT in Runs 19 and 20 is done and entered in dB


== AOB
— Richard is being added as a reviewer for TPC code


Best Regards,
  Richard

Sent from my iPad
-- 
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela

~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~
 Richard Witt, Professor of Physics     Phone (USNA): 410-293-6675
    United States Naval Academy         Email: witt AT usna.edu
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