Pi0 Polarizability Meeting May 7, 2021

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Meeting Information

Meeting Time And Location

11:00 am ET (JLab time)



You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):

  1. Make sure you have created a BlueJeans account via your JLab CUE account using this link:

  2. Meeting ID: 949 429 419
    • (you may need to type this in, depending how you connect)

  3. If connecting via Web Browser: click this link (no passcode is needed):

  4. If connecting via iOS or Android App:
    • Use your JLab e-mail address to log in and then enter the meeting ID given above to join the meeting

  5. If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"

  6. If connecting via Polycom unit:
    • Dial or bjn.vc
    • Enter meeting ID above

Action Items

  1. Draft a plan for receiving and testing MWPCs at JLab (Beni)

Tentative Agenda

  1. Announcements
  2. Action Items
  3. Theory Update
    • Status and plans for documenting theoretical work
  4. Calculations by Sergey Gevorkyan
  5. Gevorkyan et al PRC 80 (2009) 055201
  6. Experiment Update
  7. CPP and NPP Readiness Review
  8. Trigger
  9. Other business
  10. Next meeting


Attending: Alex, Elton, Mark, Rory, Ilya, Beni

  1. Announcements
  2. Action Items
    • Beni has started an OPS for testing; at the moment it does not include shipment/receiving.
  3. Theory Update
    • No update
  4. Sergey Gevorkyan paper draft May 2, 2021
    • Ilya has updated the document (linked above) with the latest feedback both from Elton and Sergey
    • Sergey's explanation for use of equations for large M has been incorporated, but should be checked
    • Ilya plans to produce some figures plotting the results of the equations
    • Feedback on the present draft is welcome.
    • Rory: Would be useful to get feedback from Jose and the theorist perspective.
  5. Gevorkyan et al PRC 80 (2009) 055201
  6. Experiment Update
  7. CPP and NPP Readiness Review
    • Reply to ERR submitted last week
  8. Preparations for MWPC shipment
    • Beni: 2 bottles of premix gas Ar/CO2 90/10 by volume has been ordered
    • Beni: Flow meters have been procured by Scot Spiegel (max scale 500 sccm). Note that we expect flow rate to be 300 sccm (5 cc/s).
    • Rory: Will bring useful equipment from UMass for use in testing. He will make a list. Partial list includes: HV supply with Arduino control and documentation, Low voltage cables, lifting fixtures for ease of handling chambers, etc.
  9. Trigger
    • Beni had contacted Sasha, but needs followup.
  10. Other business
  11. Next meeting