Compton Meeting, April 11, 2011

Agenda

Photon detector

1. PMT base update (Don)
2. "Response function" using edet (Mark)
3. Accumulator0 vs. backgrounds (Don, all)
   • ELOG 90, jonesdc: Backgrounds dilute asymmetry
   • HCLOG dalton: large non-linear baseline shift?
   • HCLOG jonesdc: baseline shift happens at absolute rate
   • ELOG 93, jonesdc: asymmetry data up to run 21515
4. Accumulator2 update (J-C - new thresholds looking good?)
5. (time permitting) Accumulator 0-3 (Wouter)
   • ELOG 92, wdconinc: Accumulator 0 minus 3 analysis cuts statistical uncertainty in half
   • Run 21515: accumulator 3 num_samples and values

Electron detector

1. E-det vs. Moller result (drop in P last week) (Vladas)
   • ELOG 177, jonesdc: electron detector asymmetries vs time for strips 46-50
   • ELOG 178, vladas: Asymmetry for strips
   • ELOG 179, vladas: Comparison between Electron Detector and Moller
   • ELOG 180, vladas: Asym for Laser OFF data
2. New event trigger suppression scheme - Amrendra is not here this week

(maybe defer until later)

Analyzer(s)

• Path forward: c++ updates/modifications needed? Role of of Fortran analyzer?