Nov 16, 2021 PrimEx-Eta (informal) Calibration & Analysis Meeting

Time and Place

• Time: Tuesday, November 16, 2021 at 10:30 am EST.
• Room: Online

Meeting Connections

1. If joining via web browser, go to [1] https://jlab.bluejeans.com/210214582/6567
2. If joining via phone, use one of the following numbers and the Conference ID: 210214582 & Passcode: 6567.
   • US or Canada: +1 408 740 7256 or
   • US or Canada: +1 888 240 2560
3. If joining via Polycom room system go to the IP Address: 104.238.247.247 (bjn.vc) and enter the meeting ID: 210214582.

Agenda

1. Announcements
2. Status of Calibrations
   • Run Validation phase I -- https://halldweb.jlab.org/wiki/index.php/RunPeriod-2019-01_Validation
     • List of runs collected in 2019
   • Run Validation phase II -- https://halldweb.jlab.org/wiki/index.php/RunPeriod-2021-09_Validation
     • List of runs collected in 2021
3. Calibration Updates:
   • Tagger (Tyler)
   • PS & Alignment (Sasha)
   • FCAL (ig)
   • CCAL (Drew)
4. Analysis Updates:
   • Experimental Systematics (Drew)
   • Experimental Angular Resolution (Tyler)
   • Background suppression (ig)
5. MC simulation Updates
   • Production (ig)
   • Matching data/simu FCAL response (Sasha)

Minutes

Present, Drew, Tyler, & ig

We discuss the:

1. Calibration status
   • Tagger
     • Tagh, since Sean automatic online calibration did a pretty good job, Tyler thinks only the time walk correction needs some work that can be done pretty fast. If Tyler is confident, he should post new tables directly on the main DB.
     • Tagm, after discussing with Sean, Tyler realized that the ADC time offset is not an issue, Tyler will work on calibrating the microscope asap
   • FCAL
     • ig will check that the pedestal for each run
     • Currently, the PrimEx-eta phase II is divided in 28 periods out of which 5 corresponds to empty target