global_CMT-8.00 Status (week 2) and issues

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global_CMT-8.00Status (week 2)and issues

• Elizabeth Gallas
• (Fermilab - Computing Division)
• See the global list history
• http//www-d0.fnal.gov/trigger_meister/
  private/www/tl_desc/global.html
• for the evolution of 8.00

Trigger Board Meeting July 24, 2002
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Current Issues/Status

• High Luminosity store today
• New prescale file using only unprescaled triggers
  will give us an idea what fraction of bandwidth
  is actually devoted to these triggers at various
  luminosities
• I have to leave by 1220pm today
• Suggest we have a meeting later in the week
• Student to help with programming
• Mark Kane Iowa State
• Tracking
• highest priority to get tracking into the global
  list 8.00
• Nearly all ID and physics groups will benefit
• JPSI , EM, TAU, MUON, JET
• Level 3 Mark and Pass (Michael)
• Mark and Pass triggers not normalized
• This is an issue especially for muon triggers
  where we have loose L3 muon filter on all muon
  triggers with mp1 even though it is not
  officially certified.

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Current Issues/Status

• Level 2
• Reinhard
• Says L2 muon available today or tomorrow
• says L2Cal etalt2.4 (same as L1) !
• E notes
• measured L3 cross section is significantly
  different for triggers with/without
• Level 2 EM
• Level 2 Jet
• This discrepancy needs to be resolved (suspect
  thresholds are too high so efficiency is
• Thresholds need to be set by the physics groups
• PLAN
• Use L2 muon it is certified. We will have
• High pT muon trigger (nearly) unprescaled
• Level 2 dimuon trigger
• (both running off the all region single muon
  trigger)
• keep L2EM, L2Jet in the global list in one
  trigger so that L2 candidates are available for
  study in every trigger
• Add L2 Cal to all triggers when discrepancy is
  explained and we have thresholds from physics
  groups.
• PHYISICS GROUPS !! It is in your best interest to
  use Level 2. Rejection at Level 2 will
  proportionally decrease your prescales.
  L2 Information is available in the current data.

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Online situation