Difference between revisions of "Π polarizability Meeting Jul 20, 2022"

From GlueXWiki
Jump to: navigation, search
(Minutes)
(Minutes)
 
Line 81: Line 81:
 
# [https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spread Sheet with Run List] (Albert)
 
# [https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spread Sheet with Run List] (Albert)
 
#* [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2022-05/index.html Statistics for CPP-NPP]
 
#* [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2022-05/index.html Statistics for CPP-NPP]
#* Ilya: Asked whether our estimate of 10% of triggers our goal. Rory's early estimates were 15% of time. We will revisit the assumptions and review the goals.
+
#* Ilya: Questioned whether our estimate of 10% of triggers should be our goal. Rory's early estimates were 15% of time. We will revisit the assumptions and review the goals. We can take more empty target data if desired.
 
# Software/Calibration, Simulations
 
# Software/Calibration, Simulations
 
## Track updates (Simon)
 
## Track updates (Simon)

Latest revision as of 12:35, 20 July 2022

09:30 EST (JLab time) Weekly Meeting

REMOTE during Covid-19

Connecting

Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1608628791?pwd=bXhtZjdNRi8xeXZqWFh5T1R3TDBFdz09
Meeting ID: 160 862 8791
Passcode: CPP

Elton Smith is inviting you to a scheduled ZoomGov meeting.

Topic: CPP Weekly Meeting
Time: This is a recurring meeting Meet anytime

Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1608628791?pwd=bXhtZjdNRi8xeXZqWFh5T1R3TDBFdz09

Meeting ID: 160 862 8791
Passcode: CPP
One tap mobile
+16692545252,,1608628791# US (San Jose)
+16468287666,,1608628791# US (New York)

Dial by your location
       +1 669 254 5252 US (San Jose)
       +1 646 828 7666 US (New York)
       +1 669 216 1590 US (San Jose)
       +1 551 285 1373 US
       833 568 8864 US Toll-free
Meeting ID: 160 862 8791
Find your local number: https://jlab-org.zoomgov.com/u/acZK7hDWFf
 
Join by SIP
1608628791@sip.zoomgov.com

Join by H.323
161.199.138.10 (US West)
161.199.136.10 (US East)
Meeting ID: 160 862 8791
Passcode: 112160

Action Items

  1. Take a current rate scan on full target later in the run to investigate any rate dependent effects. (Rory and Elton)
  2. Continue to investigate neutral channel signals (Simon, Alex, Beni)
  3. Revisit fraction of empty target to take

Preliminary Agenda

  1. Previous CPP meeting: Jul 13, 2022
  2. Previous CPP Software meeting: Π polarizability Software Meeting May 5, 2022
  3. Announcements
  4. Action Items
  5. Spread Sheet with Run List (Albert)
  6. Software/Calibration, Simulations
  7. Photon beam / tagger / diamonds
  8. DAQ and Electronic Setup (Sergey and Beni)
  9. CPP-NPP Trigger
  10. Current Run
  11. CPP and NPP Experiment Configuration
  12. Documentation
  13. Other business
  14. Next meeting

Minutes

Attending: Albert, Alex, Alison, Andrew, Beni, David H., David L., Elton, Ilya, Rory, Simon

  1. Previous CPP meeting: Jul 13, 2022
  2. Previous CPP Software meeting: Π polarizability Software Meeting May 5, 2022
  3. Announcements
  4. Action Items
  5. Spread Sheet with Run List (Albert)
    • Statistics for CPP-NPP
    • Ilya: Questioned whether our estimate of 10% of triggers should be our goal. Rory's early estimates were 15% of time. We will revisit the assumptions and review the goals. We can take more empty target data if desired.
  6. Software/Calibration, Simulations
    1. Track updates (Simon)
      • Tracks coming from downstream of the target are not found but could be used to clean up the neutral shower list
      • Simon is working on code that can find the track from downstream
    2. Skims for the run (Sean). Skims are available at /cache/halld/RunPeriod-2022-05/calib/ver01/
      • pi0 for calibration
      • CDC_goodtrack requires one quality track.
      • CTOF events
      • High energy events > 3 GeV in calorimeter
      • Phi events with forward K+K- for calibrations of forward tracks
      • Sean has not looked carefully at the outputs; comments/suggestions and feedback is welcome.
      • Ilya: Asked Sean about the selection cuts for the FCAL pi0 skims
    3. BH e+e- analysis (Andrew)
      • Showed plots of asymmetry with no accidental subtraction. Clear asymmetry seen but likely diluted by out of time tagger hits
      • Rory: Analyzing power ~ 70% and polarization is ~70%.
      • Data sample is 2022-ver01 rest files (runs 100740-10899) Time calibrations were not yet completed.
      • New monitoring runs with better calibrated runs (100995-present) will be used.
      • Alex: Could be a monitoring launch for earlier runs with better parameterizations.
  7. Photon beam / tagger / diamonds
  8. DAQ and Electronic Setup (Sergey and Beni)
  9. CPP-NPP Trigger
  10. Current Run
  11. CPP and NPP Experiment Configuration
  12. Documentation
  13. Other business
  14. Next meeting