Transition from global_CMT11.03 to global_CMT12.10

1
Transition from global_CMT-11.03to
global_CMT-12.10

• Kyle Stevenson
• Elizabeth Gallas
• Terry Toole
• Trigger Board Meeting
• July 8, 2003

2
global_CMT over last week

• 11.04 online 10-May to July 2, one Run July 7
• July 1,2 (Initial Luminosity about 20E30)
• 5 days with accelerator problems
• July 7 (Trigger verification run after many
  changes, access)
• 12.10 online July 7,8 (2 Stores including
  current)
• Smooth running with strong evidence of trigger
  problems effecting the trigger rates
• L1 Cal (hot towers)
• L3 cal spikes, jumps, rises in L3 accept rate
  of JET triggers

3
global_CMT-12.10 Runs/Rates

• 12.10 online July 7 and July 8
• 2 Stores incl. current store, Initial Luminosity
  30E30
• Store Run LumI / PSFile PeakRates ( 1400
  / 800 / 50 Hz)
• 2768 178721 30 / 30 700 / 460 / 45
  (last run of 11.04)
• 178722 24 / 25 1700/ 600 /
  55
• 178723 20 / 20 1400 / 550 /
  60
• 178724 17 / 17 1120 / 450 /
  55
• 2770 178733 31 / 30 1250 / 740 / 65
• 178734 24 / 30 900 / 550 /
  50 (L3 MET problem)
• 178735 22 / 20 1550 / 600 /
  70
• Summary 12.10 current rates to tape are too
  high, require immediate prescale adjustments !!!

4
Global_CMT-12.10 - problems

• Run 178722
• L1 and L3 spike in all high ET Jet, MHT but not
  MET or EM ?
• Spike in L1 magnified in L3 ???
• Lifetime just one or a few luminosity blocks
• Weird correlated increase in feb with increase in
  rate
• Suspect ? Increase occupancy in tracking
  increases candidates
• Run 178733
• L1 hot tower addressed by Dan
• Run 178734
• Jump and/or steady rise of high Et Jet, EM, MET,
  MHT L3 rates
• See E1_SHT20, JT_95TT, MET and MJT triggers (but
  not lowest ET jets)
• Continues over many luminosity blocks

5
Global_CMT-12. future

• Dmitri/Arnd Rate caps for version 12
• L1 / L2 / L3 Accept 1400 / 800 / 50 Hz
• L3 Calorimeter problems observed for JET triggers
• May be other problems, these have cause most
  blatant rate problems
• Rates are too high
• Prescale changes based on data collected are
  being applied at L1 to control rate to tape
• TM so far have changed only the 25E30.prescales
• See the change.log for exact changes
• This was because we expected it to be used in
  next store (this morning)
• 25E30 file was skipped during store today (due
  shifter error)
• Accepting input
• Future
• No trigger change requests have been received
  from TB
• _IP Triggers (now disabled if not sharing a
  prescale)
• xml change required TMs are awaiting
  specifications
• No triggers will change