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General Info

Documents

Software

Runs

  • 2019 Run Spreadsheet
  • FEE Runs: 9371, 9593, 9898, 9899, 9920, 9921, 10097, 10103, 10104, 10716, 10717, 10718

 

ECAL Calibration Tasks

  • Alignment
    • based on survey
    • based on tracking
  • Energy
    • Gains
      • Cosmics (Andrea/Luca, ~Oct 15)
        • relative, before and after the run
      • FEE (Andrea/Luca)
        • dedicated FEE runs, singles triggers
      • WABs
    • Sampling fractions
      • energy-dependent, simulation
    • Position/projection corrections
      • previously simulation based, no track information
    • Edge corrections
      • based on track-y at ECAL, simulation
  • Time
    • RF (Nathan)
    • channel offsets
    • time-walk
      • current parameterization should be fine if convergent or cutoff above 2.2 GeV

HODO Calibration Tasks

  • Gains
    • Calculated several time throughout the run, in the database
    • Observed dependence on luminosity, and a tiny bit on time
    • For production runs, a single run from every day (few days) can be used to calculate gains
    • For low-luminosity runs, a single run can be used to calibrate  each
    • About 15-20 file will be needed
    • Format? Either hpstr/DST with hodo information should be available, or I have a simple ntuple that gives necessary information
  • TIme
    • Currently hit time is defined as a threshold crossing time, should we use mode-7 timing algorithm?
  • Alignment
    • Hodo acceptance is covering all the ECal/SVT acceptance
    • Efficiency studies during the run didn't show any efficiency loss close to edges of the calorimeter.

Software Tasks

  • Generate aligned detectors (and track scoring plane(s))
    • survey-based (Nathan)
    • track-based
  • Simulation
    • single-e+/e-/γ events over entire kinematics for corrections
    • remove 2 dead crystals, e.g. set gains to zero in database
  • Validating RF extraction
  • Database
    • Final ECAL gains
    • Final HODO gains
    • ECAL Time offsets
  • Add HODO to particle objects
    • Time/position HODO-ECAL coincidence
  • Update ECAL corrections for 2019/4.4 GeV
    • sampling fraction 
    • edge shower loss

Meeting Agendas/Minutes

October 1, 2019

  • 2019/2015 survey analysis
  • Task lists, priorities, assignments
    • cosmic gains (Andrea/Luca) and RF (Nathan) are first, ~2 weeks
    • followed by FEE gains (Andrea/Luca) and timing offsets
    • then higher order corrections
    • discussed simulation needs for corrections, added to task lists above

October 15, 2019

October 29, 2019

  • RF
    • found signals in data, looks good, extracting to LCIO
    • looks like old pulse fitting method will still work
  • HODO
  • ECAL
    • scoring plane is shifted in v1 detectors, 5 cm upstream of where it should be
    • survey detector ready in software, to PR
  • Simulations
  • Note, EVIO files for all FEE runs (2.4 TB) are pinned on /cache for 30 days as of 10/27

November 26, 2019

  • ECAL
  • HODO
  • Data Processing / Simulations

December 10, 2019

  • ECAL
  • HODO
  • WABs (Norman)

January 14, 2020

February 4, 2020

February 18, 2020

February 25, 2020

  • Trigger bit EVIO skims going to /cache/hallb/hps/physrun2019/production/evio-skims
    • fee, mult2, mult3 bits 

March 3, 2020

  • Trigger bit skims done, for all production runs after the SVT was repositoned
    • FEE reconstructed files (no tracking) are here:  /cache/hallb/hps/physrun2019/production/pass0.0/fee/

March 17, 2020

March 31, 2020

April 14, 2020

April 21, 2020

  • ECAL gains are in the database for the golden run period.

 

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