Compton Meeting, October 31, 2012 (L210A)

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"Spooky" Agenda

Meeting room, L210A

Miscellaneous

• Best costume contest
• DNP meeting discussion
• Qweak collaboration meeting in 2 weeks - suggested topics
  • Polarimetry overview (at Mark Pitt's suggestion)
  • Photon detector analysis update (with "absolute" polarizations?)
  • Electron detector update (AN and VT analysis comparisons)
• Pass 2 analysis progress

Laser

• Laser is totally off.

Electron Detector

• What tasks remain for decision on whether to use 2 or 3 parameter fits?
• Moller-Compton-Moller data with and without noise subtraction

Photon Detector

• Tasks
  • Analytic calculation of analyzing power with continuous fit to non-linearity
  • Lead-tungstate in MC
• Has anyone measured the lead yet?

"Frightening Account of Events"

Attendance: Dave Gaskell (chair), Mark Dalton, Amrendra Narayan, Juan Carlos Cornejo (minutes), Don Jones, Dipunkar Dutta, Vladas Tvaskis

• Costume Winner: DD, something about a wig.. :)
• DNP Discussion
  • Moller results received the most question about how accurate they agree.
    • results shown still needs corrections such as beam position, etc..
    • The statistics will dictate that they should not all agree.
    • Dalton: requests that we provide better plots that non-experts can show to the public (all agree)
• Qweak Collaboration talks
  • Gaskell: Overview talk
    • Global plans for Compton, Moller, etc..
    • Compton will focus on Run2
  • Magee: Moller talk
  • Cornejo: "Absolute" polarization for Photon Detector
  • Narayan: Comparison between Narayan and Tvasky's analysis
    • Tvaskis: wants to show updated systematic table. Gaskell will work on this.
• Pass2:
  • Something wrong with eDet?
  • Will start Pass 2 tomorrow @ 2PM, rain or shine!
• Laser (skipped, off, nothing new)
• Electron Detector
  • Tvaskis: Shows eDet elog 434
    • Result of 2 and 3 parameter fits and comparison.
    • Does not include noise corrections. These results forthcoming...
  • Dutta: Update on looking at lack of conversion on some 3-parameter fit for some runs.
    • Uses 3-parameter fit with 3rd parameter being additive in stead of multiplicative
      • Controversy with this technique. Not settled.
• Photon Detector (skipped)