Nov 23, 2021 PrimEx-Eta (informal) Calibration & Analysis Meeting

Time and Place

• Time: Tuesday, November 23, 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-2021-08_Validation
     • List of runs collected in 2021
3. Calibration Updates:
   • Tagger (Tyler)
   • PS & Alignment (Sasha)
   • FCAL (ig)
   • CCAL (Drew)
4. Analysis Updates:
   • Drew
   • Tyler
   • ig
5. MC simulation Updates
   • Production (ig)

Minutes

Present: Tyler & ig.

Tyler shows a promising peak for the pi0 (exactly where the Primakoff peak is expected to be) for incident photon-beam beam between 3 and 7 GeV. Tyler will ask Ilya for his event generator/cross-section calculator so that he can do a data/simu comparison. And ig showed a promising peak for eta to pi^-pi^+pi^0 where the Primakoff peak is expected to be (but for all incident photon-beam).