Compton Meeting, January 22, 2013 (L210A)

1. Dial Toll-Free Number: 866-740-1260 (U.S. & Canada)
2. International participants dial:
Toll Number: 303-248-0285=
Or International Toll-Free Number: http://www.readytalk.com/intl
3. Enter your 7-digit access code, followed by “#”

 --> our access code is 3227471

Agenda

Usual meeting room (L210A).

Miscellaneous

• Hall C Users Meeting this Thursday afternoon and Friday all day (party Friday night).

Analyzer

• Re-analysis status after MPS tree bug fix.
  • AN said electron detector analysis was a little strange last week. Update?
• BPM sensitivities - we had the wrong values in analyzer (so did Qweak) Qweak beam log 274.
  • Since we don't look at these often in our analyzer, it is not urgent that we fix them - but it should be done soon.
  • I suggest looking at a couple runs to see how much difference it makes.

Laser

• Estimate of upper limit on "depolarization" of laser as it travels to IP (Paschke)

Photon Detector

• GEANT simulation updates
• "Analysis" updates (time dependence of slugs, etc.).

Electron Detector

• Systematic error from "floating CE" instead of floating Strip width.
• Updates on runlet vs. laser cycle comparisons now that analyzer is fixed.
• Electron detector efficiency from MC: Edet log 471.