JEF meeting, October 16, 2020

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


Connection instructions

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Agenda

Minutes

Attendees: Igal, Jared,Thomas B.,Phil,Zisis,Susan,Jon,Sasha,Liping,Jane,Bill B.

  • Thomas demonstrated changes to MCWrapper-bot, the web interface for submitting simulation jobs to the OSG, for JEF projects
    • There is now JEF button, which sets the mc_JEF MC variation and fixes beam conditions
    • For now we should use run number 90000, for which the database has been filled with the FCAL-2 geometry
    • Recommended to submit jobs in blocks of events that are not too large (<1 billion, 250 M or 500 M okay, but Thomas would like a heads-up if submit large blocks like this)
  • Latest batch of SICCAS crystals have been shipped to the lab (but not arrived yet)
    • When the crystals arrive, will go through visual inspection (Sasha and Josh are preparing the clean room for their arrival)
  • Received 20 new light guides; polishing looks improved compared to first batch
  • Sasha and Josh working with Nick S. to update the temperature control for the brazing
  • Will start construction of next set of modules soon
  • Sasha contacted Carl Zorn regarding his light transmittance measurement setup: appears to be working, still need to work on paperwork
  • Josh will make a replica of the setup used to study the crystals in the PS setup in the hall
  • CCAL moved to the floor, plan to move the TEDF for refurbishment (bases)
  • Divider design: waiting on Vlad P. for finalized tweaks
  • Zisis working with Drew W. from the detector/imaging group to find a way to get dividers to Regina
  • Tim B. still hoping to get LED driver, some bureaucratic issues need be resolved
  • We discussed having slots for JEF talks at future GlueX collaboration meetings
  • We decided to add space in the JEF meeting agendas for further discussion of studies using the current GlueX data, including 3π0 background
  • Liping brought up plans for a white paper for the Snowmass project: there is some motion toward forming a working group with both theorist and experimental input -- what do we need from the theorists? Some other questions:
    • What else can we look for using GlueX/JEF setup?
    • What decay modes for the Dark Scalar should we study?
    • Can we use beam polarization?
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