Difference between revisions of "Π polarizability Meeting Jan 8, 2020"
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#* [https://userweb.jlab.org/~ilarin/cpp/rates_70984.pdf Rates 70984] (Ilya) Presented TOF rates from test in December | #* [https://userweb.jlab.org/~ilarin/cpp/rates_70984.pdf Rates 70984] (Ilya) Presented TOF rates from test in December | ||
#* [https://userweb.jlab.org/~ilarin/cpp/tof_occ_ratio.jpeg] TOF occupancy for horizontal and vertical scintillators and ratio | #* [https://userweb.jlab.org/~ilarin/cpp/tof_occ_ratio.jpeg] TOF occupancy for horizontal and vertical scintillators and ratio | ||
− | #* | + | #* Mark: Could be that the center 4 channels are ones that Beni identified as problematic at this morning's RC meeting |
#* Another explanation is that the horizontal counters are unshielded by the horizontal gap on the beamline between the two DIRC bars. | #* Another explanation is that the horizontal counters are unshielded by the horizontal gap on the beamline between the two DIRC bars. | ||
#* We need to check with Beni about which channels are problematic and whether this problem is new or existed in December. | #* We need to check with Beni about which channels are problematic and whether this problem is new or existed in December. | ||
− | #* [[Media:CPP update jan20.pdf Slides on DIRC Geometry]] (Elton) | + | #* [[Media:CPP update jan20.pdf | Slides on DIRC Geometry]] (Elton) |
#* Collected some information on the DIRC, but more details are needed, especially gap along the beamline. | #* Collected some information on the DIRC, but more details are needed, especially gap along the beamline. | ||
# Other business | # Other business |
Latest revision as of 13:16, 8 January 2020
Meeting Info.
Meeting Time And Location
10:00 EST (JLab time)
CC L207
Connecting
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Attending: Elton, Mark, Andrew, Ilya
- Previous meeting: Dec 18, 2019
- Announcements
- Tim has setup the first meeting to discuss the CPP geometry for next week Wed Jan 15 at 2 pm in TED 2504
- Update on Run
- Data Analysis - Andrew
- e-/pi- TMVA
- Andrew presented his preliminary TMVA analysis
- We realized that the TOF calibration may not be correct. It will be updated before further studies for next week
- The e/p ratio provides considerable e/pi separation on its own.
- Discussion of beam test
- Rates 70984 (Ilya) Presented TOF rates from test in December
- [1] TOF occupancy for horizontal and vertical scintillators and ratio
- Mark: Could be that the center 4 channels are ones that Beni identified as problematic at this morning's RC meeting
- Another explanation is that the horizontal counters are unshielded by the horizontal gap on the beamline between the two DIRC bars.
- We need to check with Beni about which channels are problematic and whether this problem is new or existed in December.
- Slides on DIRC Geometry (Elton)
- Collected some information on the DIRC, but more details are needed, especially gap along the beamline.
- Other business
- Next meeting