BLTWG Meeting 07/07/2020

Organization

• Time: 1:30 EDT
• JLab meeting room: CEBAF Center F324-325
• Connecting: detailed instructions are here
  • H.323 ip address: 199.48.152.152
  • web browser: https://bluejeans.com/536076821
  • phone: 408-740-7256 or 888-240-2560
• Conference id: 536076821
• Present:

Agenda

1. Announcements
2. Polarimetry
   • TPOL polarimetry update -- presentation by Mike D. to ΣP WG
   • Progress on CBSA calculations
   • Polarimetry from hadron decays
3. Offline analysis
   • energy-dependent cross sections
   • recent changes to tagger hodoscope fluxes?
   • updates to energy_calib for earlier run periods?
4. Photon beam systematics studies
   • tagging accidentals scaling factors for spring 2020 -- Beni
   • beam flux normalization studies -- Sasha
5. Preparation for the upcoming run
   • active collimator mod, dc bias offset
   • issues seen during initial checkout?
6. Ongoing investigations
   • energy-dependent beam profile from fast raster -- Richard
   • variation in collimator transmission -- updates?
   • converter thickness systematics -- 'see spring 2018 TPOL results
   • other topics?
7. Any other business