GLB, STA, trig rates, firsts ... troubleshooting


  • STA: 1/5events, GLB:1/.... --> many STA fakes (?) --> dirrect implication on the trigger rates (xxx), higher than acceptable


  • look at number of valid, bad,lost hits for STA muons, from DT, CSC, RPC separately, vs pT, eta.
  • verify the same info versus the trigger firing


  • staLastHitDetId_v2.pdf:
    • many bad STA, on which we most certainly trigger
    • last hit position is on second CSC station--expected for punch-through.
    • --> increase trigger rate with fake/bad muons;

Now what?

  • change the trigger, to fire when having 3 stations hits (as opposed to 2); L2 trigger.

-- CameliaMironov - 09-Nov-2010

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Topic revision: r2 - 2010-11-09 - CameliaMironov
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