Difference between revisions of "Pi0 Polarizability Meeting Oct 11, 2019"
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(Created page with "=Meeting Information = == Meeting Time And Location == 10:00 am ET (JLab time) CC F228 ==Connecting== <div class="toccolours mw-collapsible mw-collapsed"> Dummy for now: Y...") |
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# Announcements | # Announcements | ||
# Action Items | # Action Items | ||
+ | ## First look at 2pi0 production on He [https://userweb.jlab.org/~ilarin/npp/2pi0he.pdf pdf] | ||
# Theory update | # Theory update | ||
# Other business | # Other business | ||
Line 58: | Line 59: | ||
=Minutes= | =Minutes= | ||
− | ''Attending: | + | ''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 [https://userweb.jlab.org/~ilarin/npp/2pi0he.pdf 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. |
Latest revision as of 14:49, 11 October 2019
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 -->):
- 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
- 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.