Pi0 Polarizability Meeting Oct 11, 2019
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Contents
Meeting Information
Meeting Time And Location
10:00 am ET (JLab time)
CC F228
Connecting
Dummy for now: You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):
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- Meeting ID: 949 429 419
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Action Items
- Event generator. Equation for g A -> g pi0 pi0
- Contact theorists:
- Lingyun Dai, Hunan University: Changsha, Hunan, CN (dailingyun@hnu.edu.cn)
- Serguei Gevorkyan
- Barbara Pasquini
Tentative Agenda
- Announcements
- Action Items
- First look at 2pi0 production on He pdf
- Theory update
- Other business
- Next meeting
Minutes
Attending: Beni, Ilya, Elton, Jose, Rory
- Announcements
- Action Items
- Rory will ask Barbar Pasquini if she is willing to help the experiment with her expertise in dispersion theory.
- Theory update
- Jose, Aleks and Svetlana met last Friday. They divided up the work. They setup a Google Drive Share for references and work summary. They plan to meet on alternate Friday's from this meeting. They do not yet have results to report.
- He Data (Ilya)
- First look at 2pi0 production on He pdf
- There are about 200k 2pi0 events (30 days) in He data and 10k 2pi0 events in Be data (2 days).
- Including BCAL doubles the statistics at this energy. Likely more important if we run at 6 GeV (instead of 9 GeV).
- The measured elasticity peak including BCAL showers is slightly less than one, which might indicate that interactions are off the nucleon.
- Beni: Was a timing cut made on the showers? Ilya: only a very wide cut. Timing of showers projected to the vertex allow selection of the prompt beam bunch.
- Rory: Has the analysis been done on Be? Ilya: Not yet because of low statistics, but the same plots an be made.
- Other business
- Next meeting
- Elton will be away in two weeks. We decided to move the next meeting to Nov 1.