June 7, 2016, Analysis Working Group
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Meeting Time and Place
The meeting will be on Tuesday June 7, 2016 at 1:30 pm EDT. For those people at Jefferson Lab, the meeting will be in room F326.
Meeting Connections
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Agenda
- Announcements
- REST Production Preparations:
- Spring 2016 Dataset Summary and Trigger Summary:
- First priority run block: 11347-11555
- Final adjustments and launch status
- Second priority run block: 11556-11678
- Efficiency / Resolution Studies Running with this Launch
- Tracking: Paul, Simon
- BCAL Hadronic: Elton
- FCAL Hadronic: ???
- SC: Mahmoud
- TOF: Beni?
- CDC: Mike
- FDC: Alex A.
- TPOL polarization update - Mike and Nathan
- AOB
Minutes
- Announcements
- REST Production Preparations:
- Spring 2016 Dataset Summary and Trigger Summary:
- First priority run block: 11347-11555
- Many updates to CCDB and sim-recon in preparation for this launch
- Test jobs submitted early Tuesday morning and were being analyzed at the time of the meeting, with a few minor bugs being fixed
- Second priority run block: 11556-11678
- After the meeting Sean found that the RF prescale was unstable for some runs during this block (11556-11
- Calibrations and detector group status reports
- TAGH and PS: Nathan has analyzed the PS skims for this run block and is studying time offsets
- TAGM: Alex reported that during this run block the TAGM used the improve bias voltages so the TAGM integral cuts are much simpler, and initial TDC/ADC time offsets are now in the CCDB
- CDC: Mike is working on time-to-distance tables for the higher magnetic field, and expects to have them in a few days
- CDC: Naomi prepared new gain tables, and they are now in the CCDB
- FCAL: Adesh has new gain constants for this run block and is working on the non-linearity correction that appears to be different from the earlier run block
- BCAL: Will reported that the BCAL gains are ready for production. Andrei is working the BCAL TDC calibration, which will take a few weeks, so we will not include it in this round of production
- Goal: all calibrations to CCDB for this run block by 5 pm on Friday 6/10. Allows time for testing before expected launch next week
- Efficiency / Resolution Studies Running with this Launch
- Paul reported on the efficiency plugins which are running during the current launch, and that ROOT TTrees are being produced for these studies
- TPOL polarization update - Mike and Nathan
- Mike presented a shortened version of his talk at Monday's BLTWG meeting
- The results from Nathan and Mike's independent analyses are consistent in the range of 7.9-9.1 GeV
- There was some discussion about the comparison to the rho beam asymmetry
- Matt asked if there was a physical mechanism for fine structure in the polarization vs energy, and Richard confirmed that it could not be a crystal effect. More study is needed to see if the fine structure in the polarization vs energy is statistically significant, and if that implies some remaining systematic uncertainty
- It was suggested to compare the TPOL asymmetry with and without requiring a coincident hit in the tagger where the tagged asymmetry is likely a better comparison to rho asymmetry, albeit with lower statistics
- AOB