Difference between revisions of "Π polarizability Meeting Aug 3, 2022"
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#* Elton will give a seminar on CPP-NPP at William and Mary on Fri Sep 2 | #* Elton will give a seminar on CPP-NPP at William and Mary on Fri Sep 2 | ||
#* Opportunity to give a talk at [https://indico.jlab.org/event/344/ QNP2022] (remote at FSU) Sep 5-9 | #* Opportunity to give a talk at [https://indico.jlab.org/event/344/ QNP2022] (remote at FSU) Sep 5-9 | ||
− | #** Rory | + | #** Rory, Andrew or Albert will give the talk and coordinate with Susan Schadmand. |
# Action Items | # Action Items | ||
# [https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spread Sheet with Run List] (Albert) | # [https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spread Sheet with Run List] (Albert) | ||
+ | #* Albert has been updating the statistics. It appears we are on target to take all data approved by the PAC by Aug 17. The plan is to take data till Friday with empty target before switching back to full target. | ||
# Software/Calibration, Simulations | # Software/Calibration, Simulations | ||
#* [https://logbooks.jlab.org/entry/4023548 Log Entry 4023548:] MWPC efficiency (Ilya) | #* [https://logbooks.jlab.org/entry/4023548 Log Entry 4023548:] MWPC efficiency (Ilya) | ||
+ | #** Ilya has entered a Log entry with details of his MWPC efficiency estimate | ||
+ | #** Elton: Could sum all wire signals in a plane and use a threshold on it, instead of placing thresholds on individual wires. | ||
#* [https://userweb.jlab.org/~ilarin/cpp/eta/pi0_5gev_lead.png dsigma/dtheta pi0] [https://userweb.jlab.org/~ilarin/cpp/eta/eta_5gev_lead.png dsigma/dtheta eta] single pi0 and eta coherent cross sections on lead at 5GeV (Ilya) | #* [https://userweb.jlab.org/~ilarin/cpp/eta/pi0_5gev_lead.png dsigma/dtheta pi0] [https://userweb.jlab.org/~ilarin/cpp/eta/eta_5gev_lead.png dsigma/dtheta eta] single pi0 and eta coherent cross sections on lead at 5GeV (Ilya) | ||
− | #* [https://logbooks.jlab.org/entry/4023645 Log Entry 4023645:] 2pi0 final states | + | #** The cross section for exclusive pi0 signal was shown. |
+ | #** The eta cross section was computed by replacing the pi0 mass by the eta mass. | ||
+ | #** These can be compared to data to check early signals. | ||
+ | #* [https://logbooks.jlab.org/entry/4023645 Log Entry 4023645:] 2pi0 final states (Beni) | ||
+ | #** Beni has processed about 38 full target and 13 empty target runs. | ||
+ | #** Clear 2pi0 signal. Comparison of (normalized) full to empty targets shows a slight enhancement at zero angle. Lots of progress but no final results yet. | ||
#* [https://userweb.jlab.org/~ilarin/cpp/mpi0pi0eta.png (pi0 pi0 eta(2g))] first look at eta' (Ilya) | #* [https://userweb.jlab.org/~ilarin/cpp/mpi0pi0eta.png (pi0 pi0 eta(2g))] first look at eta' (Ilya) | ||
+ | #** A clear eta' signal is seen, as a first step | ||
+ | #* Code updates (Simon) | ||
+ | #** There are two pull requests on Github that are relevant to CPP: | ||
+ | #** Sean found a bug in the CTOF code | ||
+ | #** Simon has added | ||
# Photon beam / tagger / diamonds | # Photon beam / tagger / diamonds | ||
# DAQ and Electronic Setup (Sergey and Beni) | # DAQ and Electronic Setup (Sergey and Beni) |
Revision as of 15:28, 3 August 2022
09:30 EST (JLab time) Weekly Meeting
REMOTE during Covid-19
Connecting
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1608628791?pwd=bXhtZjdNRi8xeXZqWFh5T1R3TDBFdz09
Meeting ID: 160 862 8791
Passcode: CPP
Elton Smith is inviting you to a scheduled ZoomGov meeting. Topic: CPP Weekly Meeting Time: This is a recurring meeting Meet anytime Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1608628791?pwd=bXhtZjdNRi8xeXZqWFh5T1R3TDBFdz09 Meeting ID: 160 862 8791 Passcode: CPP One tap mobile +16692545252,,1608628791# US (San Jose) +16468287666,,1608628791# US (New York) Dial by your location +1 669 254 5252 US (San Jose) +1 646 828 7666 US (New York) +1 669 216 1590 US (San Jose) +1 551 285 1373 US 833 568 8864 US Toll-free Meeting ID: 160 862 8791 Find your local number: https://jlab-org.zoomgov.com/u/acZK7hDWFf Join by SIP 1608628791@sip.zoomgov.com Join by H.323 161.199.138.10 (US West) 161.199.136.10 (US East) Meeting ID: 160 862 8791 Passcode: 112160
Action Items
-
Take a current rate scan on full target later in the run to investigate any rate dependent effects. (Rory and Elton)We decided that taking full target production data at reduced current was not a good use of beam time. -
Continue to investigate neutral channel signals (Simon, Alex, Beni)Data analysis were shown by Beni and Ilya and Simon is making updates to the analysis software.
Preliminary Agenda
- Previous CPP meeting: Jul 27, 2022
- Previous CPP Software meeting: Π polarizability Software Meeting May 5, 2022
- Announcements
- Elton will give a seminar on CPP-NPP at William and Mary on Fri Sep 2
- Opportunity to give a talk at QNP2022 (remote at FSU) Sep 5-9
- Action Items
- Spread Sheet with Run List (Albert)
- Software/Calibration, Simulations
- Log Entry 4023548: MWPC efficiency (Ilya)
- dsigma/dtheta pi0 dsigma/dtheta eta single pi0 and eta coherent cross sections on lead at 5GeV (Ilya)
- Log Entry 4023645: 2pi0 final states
- (pi0 pi0 eta(2g)) first look at eta' (Ilya)
- Photon beam / tagger / diamonds
- DAQ and Electronic Setup (Sergey and Beni)
- CPP-NPP Trigger
- Current Run
- CPP and NPP Experiment Configuration
- Documentation
- Other business
- Next meeting
Minutes
Attending: Andrew, Albert, Beni, David H., David L., Elton, Ilya, Rory, Simon
- Previous CPP meeting: Jul 27, 2022
- Previous CPP Software meeting: Π polarizability Software Meeting May 5, 2022
- Announcements
- Elton will give a seminar on CPP-NPP at William and Mary on Fri Sep 2
- Opportunity to give a talk at QNP2022 (remote at FSU) Sep 5-9
- Rory, Andrew or Albert will give the talk and coordinate with Susan Schadmand.
- Action Items
- Spread Sheet with Run List (Albert)
- Albert has been updating the statistics. It appears we are on target to take all data approved by the PAC by Aug 17. The plan is to take data till Friday with empty target before switching back to full target.
- Software/Calibration, Simulations
- Log Entry 4023548: MWPC efficiency (Ilya)
- Ilya has entered a Log entry with details of his MWPC efficiency estimate
- Elton: Could sum all wire signals in a plane and use a threshold on it, instead of placing thresholds on individual wires.
- dsigma/dtheta pi0 dsigma/dtheta eta single pi0 and eta coherent cross sections on lead at 5GeV (Ilya)
- The cross section for exclusive pi0 signal was shown.
- The eta cross section was computed by replacing the pi0 mass by the eta mass.
- These can be compared to data to check early signals.
- Log Entry 4023645: 2pi0 final states (Beni)
- Beni has processed about 38 full target and 13 empty target runs.
- Clear 2pi0 signal. Comparison of (normalized) full to empty targets shows a slight enhancement at zero angle. Lots of progress but no final results yet.
- (pi0 pi0 eta(2g)) first look at eta' (Ilya)
- A clear eta' signal is seen, as a first step
- Code updates (Simon)
- There are two pull requests on Github that are relevant to CPP:
- Sean found a bug in the CTOF code
- Simon has added
- Log Entry 4023548: MWPC efficiency (Ilya)
- Photon beam / tagger / diamonds
- DAQ and Electronic Setup (Sergey and Beni)
- CPP-NPP Trigger
- Current Run
- CPP and NPP Experiment Configuration
- Documentation
- Other business
- Next meeting