Jan 11, 2022 PrimEx-Eta (informal) Calibration & Analysis Meeting

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Time and Place

  • Time: Tuesday, Jan 11, 2022 at 10:30 am EST.
  • Room: Online

Meeting Connections

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Agenda

  1. Announcements
  2. Status of Calibrations
  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: Alex, Arshak, Carlos, Tyler, & ig

1/ ig described the gain QC, instruction can be found here: https://halldweb.jlab.org/wiki/index.php/Checking_the_FCAL_gains

2/ Tyler gives a status update of the tagh/tagm calibration. Tyler tuned the fitting procedure so that it will fail anymore for some counters

3/ ig shows a preliminary comparison of the eta to 2gammas angular distribution scaled by the PS scalers for Be & He targets, empty targets, and with and without B-fields. No target distribution is closer to an empty target with B-field ON. The yield when the target is present or filled is different for fields ON and OFF.