JEF meeting, July 17, 2020

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Meeting time and location= 9:00 am EST (JLab time) Bluejeans only


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Agenda

Minutes

Attendees: Arshak,Igal,Jon,Zisis,Liping,Josh,Tim W.,Susan,Sasha,Phil,Bill B.,S.T.

  • Still waiting for new light guide samples
  • mu-metal shields: company obtained new tooling ~2 weeks go, still waiting for fixed shields
  • Sasha will talk to SICCAS contact week of 7/20/20, also hope to be able to work on QA (dimensions + ?) of received crystals
    • Not able to work in Hall-C lab, move some equipment to TEDF?
    • If light guides arrive, work on module assembly for beam test?
    • Can do some test using sodium-22 source
  • Chris S. working on revised PMT base layout
    • Space for dip switches
    • Still need some resistor info from Vlad P.
    • Plan for Chris to assemble 2 bases to install in COMCAL
  • Order placed for HV
  • Contract work for new SICCAS order ongoing
  • Igal gave a presentation showing his work on simulations for η→π0γγ
    • Some discussion about how to estimate number of expected ηs
    • How to fold in random backgrounds? Use COMCAL data?
    • Do we need to fold in beam polarization?
    • Retrain ML for splitoffs? Matt suggests wait until have real data
    • Some structure seen in π0γ for B-boson test need to be understood
    • Suggestions brought up during discussion:
      • Look at efficiency
      • Look at Dalitz distribution
      • Look at η→3π0 background
      • Look at using an existing tool such as pluto to deal with η decays
  • Plan to create common directory accessible on ifarm for JEF simulations
  • Sasha will look into elog for JEF
  • Liping plans to work on letter of intent for Snowmass
  • Meeting ended with discussion of what work can be done remotely given MEDCON-5
    • PMT base checkout?
    • Igal suggested Phil's student could help out with dark scalar efforts