Trigger Operation Meeting (10/16/07)

Meeting Information

 Date      :  October 16, 2007
 Time      :  2:00pm - 3:30pm PST
 SLAC Room :  Madrone conf room, ROB 
 
 Dial-in   :  1-510-665-5437, pass code 6649#

--- Minutes ---

Operations

• Debbie and Hojeong looked at JAS instructions to make it clearer for shifters. One question came up: At (or above) what percentage of damaged events will data quality be marked as flawed?
  • The shifters should not mark run other than good for trigger.
  • DQM manager (Rahmat) will mark it as bad if it is so later.
  • TRG does not have to give this decision before PR, because it does not affect to other runs (ex: rolling calibration).
• Al wants to know that if single EMC ROM data has data flow error, do we throw the data away?

EMT

• Is this instruction on how to mask hot tower current? : Mark will practice it during cosmiscs in late November or early December. He will follow this instruction and update if needed.
• CM presentation
• Efficiency studies in here. When plot shows red and black histograms:
  • Red: high L1 rate (4 kHz), 6.3% deadtime, Run 75937
  • Black: low L1 rate (2.5kHz), 1.2% deadtime, Run 75960
  Both are taken on August 27th. Su Dong suggests to look at clusters where muon points only (in mu pair events). Take a look at old "early EMT" problem.

DCT

GLT

Online

L3

DQM

• CM presentation:
  • mu pairs are subset of bhabhas: error should be binomial. It's already done.
  • Rahmat added (L3 Lumi)/(mu pair counting). He will check exactly how he got L3 lumi and mu pair counting.

Trickle injection monitoring

Trigger Configuration

• Survey Result Discussion
• We postpone the discussion until two weeks when both Rainer and Su Dong can attend.
• We need to see the effect of each stage of emergency configuration in the suggested order during the Previous discussion.

AOB

• TRG ops meeting will be announced in TRG ops HN, although we found there is BFMAIL archive.
• Next meeting is in two weeks.