Oct 18, 2018 Calorimeter

Meeting Time: 11:00 a.m.

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Participant Direct Lines

• JLab Phone in CC L207 is 757-269-7084 (usual room)
• JLab Phone: in CC F326 is 757-269-6460
• Phone in the Regina Video-conference Suite is 306-585-4204
• Athens Phone: in Christina's office is 011-30-210-727-6947

Action Items

1. BCAL and FCAL: Develop standard fiducial volume cuts for the calorimeters. Will be completed as part of the goals for efficiency measurements.
2. FCAL: Cross check MC changes by Richard to make sure that gains are not affected in both Geant3 and Geant4 (Matt/IHEP)
3. Fix FCAL online monitoring plugin to properly plot low level digi quantities in 2D displays. 2D display of pedestal is hard to get because occupancy plot is filled in a different loop. (Matt)

MC check not to be forgotten

1. From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal. See Sep 21, 2017 Calorimeter Meeting.

Goals for Calorimetry Group

1. Determine preliminary photon reconstruction efficiencies as a function of E, phi and theta in data and simulation with a point-to-point precision of at least 5%.
2. Measure systematics of pi0/eta mass calibration as a function of detector position to a precision of at east 5 MeV.
3. Demonstrate agreement of photon reconstruction efficiency and resolution between data and simulation as a function of E, phi and theta to within 5%.

References

1. FCAL HDFCAL log book
2. BCAL HDBCAL log book

Tentative Agenda

1. Announcements
2. Action Items
3. Goals for Calorimetry Group
   • Working Group Discussion
4. Run Updates
   1. FCAL
   2. BCAL
5. Calibrations
   • BCAL MC nonlinear shower energy correction
6. Reconstruction and Simulation
   • Efficiency Updates (Jon)
   • nan in bcal showers (From Beni)
7. NIM articles
8. Any other business

Minutes

Attending: Elton, Tolga, Colin, Beijiang Liu, Colin, Mark (JLab); Sean (FSU); Christina, George (Athens); Jon, Matt (IU); Tegan, Zisis, Karthik Suresh (UofR)

1. Announcements
   • We welcome Karthik Suresh, new student at Regina, and Beijiang Liu from the Institute of High Energy Physics, China.
2. Action Items
3. Goals for Calorimetry Group
   • Working Group Discussion
   • The proposed goals were discussed briefly, with a consensus that they were important and timely.
4. Run Updates
   1. FCAL
   2. BCAL
5. Calibrations
   • BCAL MC nonlinear shower energy correction
6. Reconstruction and Simulation
   • Efficiency Updates (Jon)
   • nan in bcal showers (From Beni)
7. NIM articles
8. Any other business