The CMS high level trigger
Dec, 2005Citations per year
Abstract:
At the Large Hadron Collider at CERN the proton bunches cross at a rate of 40MHz. At the Compact Muon Solenoid experiment the original collision rate is reduced by a factor of O (1000) using a Level-1 hardware trigger. A subsequent factor of O(1000) data reduction is obtained by a software-implemented High Level Trigger (HLT) selection that is executed on a multi-processor farm. In this review we present in detail prototype CMS HLT physics selection algorithms, expected trigger rates and trigger performance in terms of both physics efficiency and timing.Note:
- accepted by EPJ Nov 2005
- 07.05.Tp
- 07.05.Kf
- 13.85.-t
- 02.07.Uu
- p p: colliding beams
- trigger
- particle identification
- transverse energy: missing-energy
- calibration
- programming
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