Difference between revisions of "Aug 20 2024 PrimEx-eta (informal) Calibration & Analysis Meeting"

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#* Run Validation phase III -- https://halldweb.jlab.org/wiki/index.php/RunPeriod-2022-08_Validation
 
#* Run Validation phase III -- https://halldweb.jlab.org/wiki/index.php/RunPeriod-2022-08_Validation
 
# Analysis
 
# Analysis
#* What needs to be improved?
+
# Two analysis strategy:
#** LOG?
+
#* What should be compared?
#** Phase 1/2 calibrations?
+
#*** N_{yield}(E_\gamma,\theta) or/and
#* Select coherent process
+
#*** d\sigma\d\Omega(E_\gamma,\theta) or/and
# Issues:
+
#*** \Gamma(\eta \to \gamma\gamma)
#* What is the \eta polar angle resolution? -> data/simu comparison is good? Yes above 1.5 degree w/ Compton (Drew)
+
#* What is common?  
#* How to apply the BCAL veto? -> Dedicated simulation with recoil nucleon/nucleus allows us to determine that (Drew + Ig)
+
#** Same inputs:
#* \eta mass vs \eta polar angle after 1c fit or energy constraint behavior? -> understood
+
#*** Data (full & empty) & simulation (signal & background) files
#* Simulation per tagger channel or flux spectra?
+
#*** Integrated luminosity and energy bin
#* Complete quasi-free PDF needed ie Coulomb (Primakoff) and Strong => 2 or 2+ PDFs for Primakoff
+
#*** Branching ratios
# Calibration status:
+
#*** Cool gas contribution
#* Phase III status -- https://halldweb.jlab.org/wiki/index.php/2022_Data_Production#PrimEx_Phase-III_Calibrations
+
#* How to treat differences?
#* Phase II flux (Sasha)
+
#* Below 1\sigma
#* Calorimeters energy calibration (ig)
+
#* Between 1\sigma and  2\sigma
#** FCAL
+
#* Above 2\sigma
#*** [[PrimEx-eta phase1 FCAL energy calibration]]
+
# Data/Simu:
#*** [[PrimEx-eta phase2 FCAL energy calibration]]
+
#* What is the \eta polar angle resolution? -> data/simu comparison is good?
#*** [[SRC FCAL time/energy calibrations]]
+
# Calibration is done
#*** [[CPP FCAL time/energy calibrations]]
+
#*** [[PrimEx-eta phase3 FCAL time/energy calibrations]]
+
#*** [[GlueX phase 2, 2023-01 data set]]
+
#** BCAL
+
#*** [[PrimEx-eta phase 3 (2022-08) BCAL pi0 calibration]]
+
 
# Analysis Updates:
 
# Analysis Updates:
 
#* Viviana
 
#* Viviana

Latest revision as of 09:56, 20 August 2024

Time and Place

  • Time: Tuesday, August 20, 2024 at 10:00 am EDT.
  • Room: Online

Meeting Connections

Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1603338968?pwd=RE82K09ocHlMUVdVZXAwRTh1ZmF6dz09

Meeting ID: 160 333 8968 Passcode: 237672 One tap mobile +16692545252,,1603338968# US (San Jose) +16468287666,,1603338968# US (New York)

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Meeting ID: 160 333 8968 Find your local number: https://jlab-org.zoomgov.com/u/abf7wcfSu1

Join by SIP 1603338968@sip.zoomgov.com

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Agenda

  1. Announcements
  2. List of good runs
  3. Analysis
  4. Two analysis strategy:
    • What should be compared?
        • N_{yield}(E_\gamma,\theta) or/and
        • d\sigma\d\Omega(E_\gamma,\theta) or/and
        • \Gamma(\eta \to \gamma\gamma)
    • What is common?
      • Same inputs:
        • Data (full & empty) & simulation (signal & background) files
        • Integrated luminosity and energy bin
        • Branching ratios
        • Cool gas contribution
    • How to treat differences?
    • Below 1\sigma
    • Between 1\sigma and 2\sigma
    • Above 2\sigma
  5. Data/Simu:
    • What is the \eta polar angle resolution? -> data/simu comparison is good?
  6. Calibration is done
  7. Analysis Updates:
    • Viviana
    • Drew
    • ig
  8. BGGEN check

Minutes