Difference between revisions of "20200501-PREX2-Analysis"

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== Agenda ==
 
== Agenda ==
  
 +
=== PREX Respin 2, CREX Respin 1 ===
 +
We are close to ready for another round of respins. For these the changes are as follows:
 +
# Burp cut changes:
 +
#* Loosen the burp cut so that the modulation data does not trip the burp cut
 +
#* Increase the BPM cut from 0.35 mm to 0.6mm and that seems to rescue the BMOD data from cutting with minimal harm
 +
#* A presentation on this can be made soon by either Quinn, Victoria, or Cameron
 +
# Change in the normalizing BCM:
 +
#* The combination "(2*bcm_an_us + bcm_an_ds)/3" will be used for the normalizinf BCM, except for runs 3594-3573 which will use bcm_dg_ds
 +
# Pedestal updates:
 +
#* Pedestals for BCM vs. unser, and everything vs. that BCM have been obtained for [http://ace.phys.virginia.edu/HAPPEX/4084 PREX] and [http://ace.phys.virginia.edu/HAPPEX/4081 CREX]
 +
# Use of combined BPM 11 & 12 in both regression and dithering for PREX, 1X instead of 4aX for CREX
 +
# AT detectors added to global error flag:
 +
#* Doing this would allow our normal dithering and regression analysis to work for the ATs in all runs
 +
#* Devi has looked at this, and including them for all two-arm runs would just result in losing 13155 total multiplet patterns from our grand statistics which is ~1.5 miniruns
  
 
===  Analysis projects ===
 
===  Analysis projects ===

Revision as of 11:10, 1 May 2020

Back to Main Page >> PREX2_Analysis

previous meeting << >> following meeting

Logistic information

Meeting room at JLab: REMOTE ONLY

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Agenda

PREX Respin 2, CREX Respin 1

We are close to ready for another round of respins. For these the changes are as follows:

  1. Burp cut changes:
    • Loosen the burp cut so that the modulation data does not trip the burp cut
    • Increase the BPM cut from 0.35 mm to 0.6mm and that seems to rescue the BMOD data from cutting with minimal harm
    • A presentation on this can be made soon by either Quinn, Victoria, or Cameron
  2. Change in the normalizing BCM:
    • The combination "(2*bcm_an_us + bcm_an_ds)/3" will be used for the normalizinf BCM, except for runs 3594-3573 which will use bcm_dg_ds
  3. Pedestal updates:
    • Pedestals for BCM vs. unser, and everything vs. that BCM have been obtained for PREX and CREX
  4. Use of combined BPM 11 & 12 in both regression and dithering for PREX, 1X instead of 4aX for CREX
  5. AT detectors added to global error flag:
    • Doing this would allow our normal dithering and regression analysis to work for the ATs in all runs
    • Devi has looked at this, and including them for all two-arm runs would just result in losing 13155 total multiplet patterns from our grand statistics which is ~1.5 miniruns

Analysis projects

  1. BCM double difference study
  2. BPM resolution
  3. Pedestal / Normalization BCM history
  4. Events/ Patterns Counter
  5. Dithering sensitivity/Quality re-check
  6. Grand statistics re-check
  7. Linearity check

Present

Excused

Paul K