Difference between revisions of "Π polarizability Meeting May 19, 2021"

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(Minutes)
(Minutes)
 
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# [[CPP and NPP Readiness Review]]
 
# [[CPP and NPP Readiness Review]]
 
# [https://drive.google.com/drive/folders/1aiSOVh4zWwnObV5fA0eF-OXG8YbE14pO?usp=sharing Responses to the ERR]. This link points to the draft response to the ERR.
 
# [https://drive.google.com/drive/folders/1aiSOVh4zWwnObV5fA0eF-OXG8YbE14pO?usp=sharing Responses to the ERR]. This link points to the draft response to the ERR.
 +
#* Rory has drafted a response to the questions about MWPC efficiency.
 +
#* Send Rory comments on the document. David has already done so.
 
# hdgeant4 updates (Beni and Simon)
 
# hdgeant4 updates (Beni and Simon)
 
#* Mother volume changed to 'site' so that it would not overlap with FCAL
 
#* Mother volume changed to 'site' so that it would not overlap with FCAL
Line 75: Line 77:
 
#* Added Pb picture frame to the geometry
 
#* Added Pb picture frame to the geometry
 
#* Beni: Added geometry file to ccdb. Also included a material file in both the default and the mc_cpp versions
 
#* Beni: Added geometry file to ccdb. Also included a material file in both the default and the mc_cpp versions
#* Rory: Note that the '''wire spacing is 0.4 in. (not 1.0 cm)'''
+
#* Rory: Note that the '''wire spacing is 0.4 in. (not 1.0 cm)'''. Over the length of the chamber that translates into over an accumulation of 2 cm.
# [https://logbooks.jlab.org/entry/3877374 Log Entry 3877374] Plugin with latest changes  
+
#* Beni will make the appropriate change to hdgeant4 and place the beam half way between wires 72 and 73.
# GlueX Data Analysis
+
#* [https://logbooks.jlab.org/entry/3877374 Log Entry 3877374] Plugin with latest changes  
 +
# Rory: Inquired about the progress on matching muon tracks to single hits in FCAL
 +
#* Simon: Code is on a branch that will do this. There is not intention of elevating single hits to FCAL showers. However, a list of hits in FCAL will be available for matching to tracks. He continues to work on this.
 +
#* Rory: would like Andrew and Albert to get back to this issue this summer.
 +
# GlueX Data Analysis (Andrew)
 +
#* Continues to work on BH analysis of GlueX data.
 +
#* Finds differences between data and MC in the elasticity variable.
 +
#* Empirical adjustments to the FCAL energy allows the MC to match the data.
 +
#* Checks with omegas look good
 +
#* Checks with pi0->gamma e+e- show anomalies.
 +
#* Results of training, shows anomalies in the pid variables, asymmetric between positive and negatives.
 +
#* After matching e+ and e- separately, MC matches data, but e+ and e- elasticity variables are slightly different (as they are for data). A second adjustment brings e+ and e- together
 +
#* After training with the new distributions, the pid variables continue to show anomalies in the difference between positive and negatives. Work is ongoing.
 
# CPP Software
 
# CPP Software
 
# PID + AI
 
# PID + AI
 
# Other business
 
# Other business
 
# Next meeting
 
# Next meeting

Latest revision as of 11:51, 19 May 2021

Meeting Time And Location

09:00 EST (JLab time) Weekly Meeting

REMOTE during Covid-19

Connecting

You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):

  1. Make sure you have created a BlueJeans account via your JLab CUE account using this link:

  2. Meeting ID: 949 429 419
    • (you may need to type this in, depending how you connect)

  3. If connecting via Web Browser: click this link (no passcode is needed):

  4. If connecting via iOS or Android App:
    • Use your JLab e-mail address to log in and then enter the meeting ID given above to join the meeting

  5. If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"

  6. If connecting via Polycom unit:
    • Dial 199.48.152.152 or bjn.vc
    • Enter meeting ID above



Action Items

Preliminary Agenda

  1. Previous CPP meeting: May 12, 2021
  2. Announcements
    • Screen shots of detector from Stephanie
  3. Action Items
  4. CPP and NPP Readiness Review
  5. Responses to the ERR. This link points to the draft response to the ERR.
  6. hdgeant4 updates (Beni and Simon)
  7. Log Entry 3877374 Plugin with latest changes
  8. GlueX Data Analysis
  9. CPP Software
  10. PID + AI
  11. Other business
  12. Next meeting

Minutes

Attending: Alex, Andrew, Beni, David, Ilya, Mark, Rory, Simon, Elton

  1. Previous CPP meeting: May 12, 2021
  2. Announcements
  3. Action Items
  4. CPP and NPP Readiness Review
  5. Responses to the ERR. This link points to the draft response to the ERR.
    • Rory has drafted a response to the questions about MWPC efficiency.
    • Send Rory comments on the document. David has already done so.
  6. hdgeant4 updates (Beni and Simon)
    • Mother volume changed to 'site' so that it would not overlap with FCAL
    • Added dead region of 10x10 cm2 into a non-sensitive area.
    • All changes in the xml, so no changes needed in the hdgeant4 code (Richard's recommendation)
    • 2" circular beam hole aperture for beam.
    • Rory: Plans to update document with best estimates of the Al honey comb. At the moment a reasonable composite is used
    • Added Pb picture frame to the geometry
    • Beni: Added geometry file to ccdb. Also included a material file in both the default and the mc_cpp versions
    • Rory: Note that the wire spacing is 0.4 in. (not 1.0 cm). Over the length of the chamber that translates into over an accumulation of 2 cm.
    • Beni will make the appropriate change to hdgeant4 and place the beam half way between wires 72 and 73.
    • Log Entry 3877374 Plugin with latest changes
  7. Rory: Inquired about the progress on matching muon tracks to single hits in FCAL
    • Simon: Code is on a branch that will do this. There is not intention of elevating single hits to FCAL showers. However, a list of hits in FCAL will be available for matching to tracks. He continues to work on this.
    • Rory: would like Andrew and Albert to get back to this issue this summer.
  8. GlueX Data Analysis (Andrew)
    • Continues to work on BH analysis of GlueX data.
    • Finds differences between data and MC in the elasticity variable.
    • Empirical adjustments to the FCAL energy allows the MC to match the data.
    • Checks with omegas look good
    • Checks with pi0->gamma e+e- show anomalies.
    • Results of training, shows anomalies in the pid variables, asymmetric between positive and negatives.
    • After matching e+ and e- separately, MC matches data, but e+ and e- elasticity variables are slightly different (as they are for data). A second adjustment brings e+ and e- together
    • After training with the new distributions, the pid variables continue to show anomalies in the difference between positive and negatives. Work is ongoing.
  9. CPP Software
  10. PID + AI
  11. Other business
  12. Next meeting