The CMS high level trigger


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Adam W., Bergauer T., Deldicque C., Ero J., Fruehwirth R., Jeitler M., ...Daha Fazla

EUROPEAN PHYSICAL JOURNAL C, cilt.46, ss.605-667, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 46 Konu: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1140/epjc/s2006-02495-8
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL C
  • Sayfa Sayıları: ss.605-667

Özet

At the Large Hadron Collider at CERN the proton bunches cross at a rate of 40 MHz. 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.