Difference between revisions of "Pi0 Polarizability Meeting Oct 9, 2020"
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# Announcements | # Announcements | ||
# Action Items | # Action Items | ||
− | # | + | # PAC48 |
+ | #* [https://halldweb.jlab.org/DocDB/0046/004600/005/npp_endorsement.pdf GlueX Endorsement] | ||
+ | #* [https://www.jlab.org/exp_prog/PACpage/PAC48/PAC48_PrelimReportPlus_FINAL.pdf PAC48 Final Report] | ||
# Theory Update | # Theory Update | ||
− | # Beam Test | + | # Beam Test |
# Other business | # Other business | ||
# Next meeting | # Next meeting | ||
= Minutes = | = Minutes = | ||
− | ''Attending: | + | ''Attending: Elton, Alex A, Rory, Ilya, Jose, Beni |
+ | |||
+ | # Announcements | ||
+ | # Action Items | ||
+ | # PAC48 | ||
+ | #* [https://halldweb.jlab.org/DocDB/0046/004600/005/npp_endorsement.pdf GlueX Endorsement] | ||
+ | #* [https://www.jlab.org/exp_prog/PACpage/PAC48/PAC48_PrelimReportPlus_FINAL.pdf PAC48 Final Report] | ||
+ | #* NPP and CPP were favorably reviewed by the PAC and we are encouraged to run the experiment in 2022. | ||
+ | # Theory Update | ||
+ | #* [https://userweb.jlab.org/~ilarin/npp/gevs_061220.pdf Calculations by Sergey Gevorkyan] | ||
+ | #* Ilya gave an update on Sergey's efforts | ||
+ | #* There is a draft writeup, representing the work to date. These results were available in June, but not in time to include into the PAC submission | ||
+ | #* The calculations are based on the PRIMEX formalism with modifications for two pion production. | ||
+ | #* We are asked to read the draft and provide feedback to Sergey. He is also looking for help with numerical calculations. | ||
+ | #* We promise to provide feedback in the next couple of weeks. | ||
+ | # Beam Test (Ilya) | ||
+ | #* [https://userweb.jlab.org/~ilarin/npp/fr.pdf Draft Beam Test Report] | ||
+ | #* See Section 5 on FCAL trigger. Estimated FCAL trigger at 20 nA and NPP radiator is 13 kHz (no DIRC or Pb shield). The FCAL threshold is about > 0.7 GeV (nominally 0.5 GeV). | ||
+ | #* These rates are quite acceptable and may allow us to run at somewhat higher current. | ||
+ | # Other business | ||
+ | # Next meeting | ||
+ | #* Due to the collaboration meeting in two weeks, we will not meet again till Nov 6. |
Latest revision as of 11:27, 9 October 2020
Contents
Meeting Information
Meeting Time And Location
10:00 am ET (JLab time)
REMOTE
Connecting
You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):
- Make sure you have created a BlueJeans account via your JLab CUE account using this link:
- http://jlab.bluejeans.com (You should only need to do this once)
- Meeting ID: 949 429 419
- (you may need to type this in, depending how you connect)
- If connecting via Web Browser: click this link (no passcode is needed):
- 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
- If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"
- Dial: (408) 740-7256 (US or Canada only)
- or, List of International Numbers
- If connecting via Polycom unit:
- Dial 199.48.152.152 or bjn.vc
- Enter meeting ID above
Action Items
- ChiPT calculation to one loop with Coulomb photon (Svetlana and Aleks)
- BGGEN simulations of incoherent backgrounds (Mark)
- Calculations by Sergey Gevorkyan
Tentative Agenda
- Announcements
- Action Items
- PAC48
- Theory Update
- Beam Test
- Other business
- Next meeting
Minutes
Attending: Elton, Alex A, Rory, Ilya, Jose, Beni
- Announcements
- Action Items
- PAC48
- GlueX Endorsement
- PAC48 Final Report
- NPP and CPP were favorably reviewed by the PAC and we are encouraged to run the experiment in 2022.
- Theory Update
- Calculations by Sergey Gevorkyan
- Ilya gave an update on Sergey's efforts
- There is a draft writeup, representing the work to date. These results were available in June, but not in time to include into the PAC submission
- The calculations are based on the PRIMEX formalism with modifications for two pion production.
- We are asked to read the draft and provide feedback to Sergey. He is also looking for help with numerical calculations.
- We promise to provide feedback in the next couple of weeks.
- Beam Test (Ilya)
- Draft Beam Test Report
- See Section 5 on FCAL trigger. Estimated FCAL trigger at 20 nA and NPP radiator is 13 kHz (no DIRC or Pb shield). The FCAL threshold is about > 0.7 GeV (nominally 0.5 GeV).
- These rates are quite acceptable and may allow us to run at somewhat higher current.
- Other business
- Next meeting
- Due to the collaboration meeting in two weeks, we will not meet again till Nov 6.