PC-2015-11-12-diagnostics¶

There will be an analysis/diagnostics meeting Thursday 22nd October, 14:00.

We will be in one of the usual meeting rooms in the Atlas building, using phone:

http://mice.iit.edu/phonebridge.html

• Tracker-to-tracker alignment - Melissa/Chris Hunt/John Nugent
  • Tracker Survey
  • Technical note by 23/10/15
• Tracker alignment to field - Chris Rogers/Sophie
  • Technical note by 23/10/15
• Cut-based beam selection vs 2015/01 data - Tanaz/Scott Wilbur
• Ckov momentum scan - Ao, Durga
• Full PID vs 2015/01 data - Celeste
• PID detector alignment - Francois global_det_alignment_151112.pdf
• Detector Efficiencies - Jan/Francois
• Paper: High precision measurement of emittance - Chris Hunt/Victoria

Notes¶

Tanaz Mohayai
John Nugent
Durga Rajaram
Celeste Pidcott
Francois Drielsma
Chris Rogers
Paul Soler
Scott Wilbur
Ryan Bayes

Diagnostics

Internal alignment

• Internal alignment for upstream and downstream tracker - resolved residuals in downstream tracker
  • Looks like numbers are consistent with 0

Cut based beam selection

• Looking back into the June data to understand TOF discrepancies
• Note that there used to be a rate dependent tof which we never understood
• Plan to plot TOF vs run number
• Durga notes that he has a new calibration which appears to produce better results (narrower electron peak) - see uploaded png files

Global PID

• Analysing run 7417 - muon beam from weekend around end of September
• Focussing on straight tracks still

Global detector alignment

• Still need for Q789 off for TOF0 alignment
• Check against MC
• Ryan notes flip in y in MC

Tracker

• Most of the effort is on the sign flip
• Kalman fit up to snap/pz reconstruction