star-tpc-l AT lists.bnl.gov
Subject: Star-tpc-l mailing list
List archive
- From: "Fisyak, Yuri V" <fisyak AT bnl.gov>
- To: "Witt, Richard CIV USNA Annapolis" <witt AT usna.edu>, Star-tpc L <Star-tpc-l AT lists.bnl.gov>
- Subject: Re: [[Star-tpc-l] ] TPC Meeting Minutes
- Date: Fri, 30 May 2025 20:17:53 +0000
Hello, just for record, the problem with dE/dx calibration for AuAu_2023 sample, reported yesterday, has been fixed https://drupal.star.bnl.gov/STAR/system/files/RunXXIII%20AuAu200GeV%20calibration_0.pdf
From:
star-tpc-l-request AT lists.bnl.gov <star-tpc-l-request AT lists.bnl.gov> on behalf of Richard Witt <star-tpc-l AT lists.bnl.gov>
Present: Alexei, Jim, Flemming, Yuri, Gene, and myself
== Hardware — TPC is running well so far — gas system is okay — some concern about liquid argon delivery — started circulation mode at only .8 inches of liquid argon — was resolved with delivery yesterday — good for at least 80 days — injection will begin over next few days — hope for usable events around June 8th
== Electronics — Still have some difficulties in sectors 3 and 4 (will be masked out) — two FEE are sending data with same ID (needs to be sorted out)
== Software — at S&C meeting yesterday — Run22 SCW file stream moved forward with old TPC alignment — was due to increase in time of tracking (due to hit errors) — Spin and CQCD group was asked about usefulness of old alignment vs new — can look at electron E/p from calorimeter (and TPC) in SCW file stream — some mild correlation with h-/h+ -> perhaps TPC alignment? — Gene put Emmy in touch with Temple group to see if a correction can be devised — Yuri started laser drift velocity calculation — looks good so far — Yuri working on calibrations (Run23 O+O and Run23 Au+Au) — for RunXXI OO200GeV ( see https://drupal.star.bnl.gov/STAR/system/files/RunXXI%20OO200GeV%20recalibration.pdf ) — big change in CPU time noted between dev on old nodes and containers on Alma Linux (50% change) — also noted a jump in dE/dx (measured vs. predicted) on 6/26/2023 — believed to be related to change in methane bottle (different vendor?) — for RunXXIII AuAu_2023 ( see https://drupal.star.bnl.gov/STAR/system/files/RunXXIII%20AuAu200GeV%20calibration.pdf )
== AOB — Need two sub samples of 11 GeV reproduction to check which method to use for magnetic field
Best Regards, Richard
Sent from my iPad -- |
-
[[Star-tpc-l] ] TPC Meeting Minutes,
Richard Witt, 05/01/2025
- <Possible follow-up(s)>
-
[[Star-tpc-l] ] TPC Meeting Minutes,
Richard Witt, 05/08/2025
- Re: [[Star-tpc-l] ] TPC Meeting Minutes additioanl info, videbaek, 05/08/2025
- [[Star-tpc-l] ] TPC Meeting Minutes, Richard Witt, 05/15/2025
-
[[Star-tpc-l] ] TPC Meeting Minutes,
Richard Witt, 05/29/2025
- Re: [[Star-tpc-l] ] TPC Meeting Minutes, Fisyak, Yuri V, 05/30/2025
Archive powered by MHonArc 2.6.24.