Difference between revisions of "Meetings-2-4-2021"

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(Minutes)
(Agenda)
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Thu 2/4/2021 2pm
 
Thu 2/4/2021 2pm
 
= Agenda =
 
= Agenda =
 +
# Tracking
 
#* [http://www.jlab.org/Hall-D/detector/trd/Jpsi_tracking_Feb4.pdf chi^2 comparison]
 
#* [http://www.jlab.org/Hall-D/detector/trd/Jpsi_tracking_Feb4.pdf chi^2 comparison]
 +
# Detector related reports
 
#** Tuning of broken wires in [https://halldweb.jlab.org/talks/2021/FDC_Efficiency/FDC_Eff_2017_G4.gif MC], comparison with [https://halldweb.jlab.org/talks/2021/FDC_Efficiency/FDC_Eff_2017_Data.gif Spring 2017 Data]
 
#** Tuning of broken wires in [https://halldweb.jlab.org/talks/2021/FDC_Efficiency/FDC_Eff_2017_G4.gif MC], comparison with [https://halldweb.jlab.org/talks/2021/FDC_Efficiency/FDC_Eff_2017_Data.gif Spring 2017 Data]
 
#** Kaon efficiencies (Chandra)[https://halldweb.jlab.org/DocDB/0049/004900/001/KPlusEfficiencyStudiesChandra.pdf]
 
#** Kaon efficiencies (Chandra)[https://halldweb.jlab.org/DocDB/0049/004900/001/KPlusEfficiencyStudiesChandra.pdf]
 +
# GEM-TRD
 
#* [http://www.jlab.org/Hall-D/detector/trd/GEM_TRD_tracking_Feb4.pdf gas analysis and padGEM studies]
 
#* [http://www.jlab.org/Hall-D/detector/trd/GEM_TRD_tracking_Feb4.pdf gas analysis and padGEM studies]
 
# Other - collaboration meeting
 
# Other - collaboration meeting

Revision as of 17:33, 4 February 2021

  1. Instructions for Bluejeans meeting connection
  2. Meeting ID: 290664653
  3. To join via a Web Browser, go to the page [1] https://bluejeans.com/290664653.

Thu 2/4/2021 2pm

Agenda

  1. Tracking
  2. Detector related reports
  3. GEM-TRD
  4. Other - collaboration meeting

Minutes

  1. Other: No tracking talk at the collaboration meeting. Some tracking related topics will be discussed in other talks.
  2. Tracking updates: Discussing the track-fitting quality, chi^2/ndf, vs theta for 2020, compared to the previous running periods. The deterioration for theta>10 deg should be studied with high rate reactions (Alex with rho) or just inclusively (Sean). Alex: many changes have been done in the tracking software for the 2020 production, need to evaluate their effect on the tracking quality. Discussions with Simon after the meeting: the new extrapolating algorithm doesn't affect the CDC region. The tracking problems could be related to the timing as the J/psi yields increased with loose timing cuts.
  3. Detector-related analysis
    • CDC
    • FDC
  4. GEM-TRD: We finished with the CDC gas tests: no Oxygen at 100ppm level, so CDC is very gas tight. The Oxygen we see with the gas chromatograph most likely comes from the tubing at/around the bubblers. Will restore the gas in the CDC and do the same tests with the FDC. Kondo performed analysis of the resolution of the padGEM (1x1 cm^2 pads) for different pad patterns: found significant improvement (~300 microns) when you have 3x3 pads above threshold.