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The CMS high level trigger

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Adam, W. Delaere, Christophe [UCL] Ninane, Alain [UCL] Bruno, Giacomo [UCL]

(eng) 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. Comment: accepted by EPJ Nov 2005

Document type Article de périodique (Journal article)
Publication date 2005
Journal information "European Physical Journal C. Particles and Fields" - Vol. C46, p. 605-667 (2006)
Peer reviewed yes
e-issn 1434-6052
issn 1434-6044
Publication status Publié
Affiliation UCL
Keywords High Energy Physics - Experiment
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Bibliographic reference Adam, W. ; Delaere, Christophe ; Ninane, Alain ; Bruno, Giacomo ; et. al. The CMS high level trigger. In: European Physical Journal C. Particles and Fields, Vol. C46, p. 605-667 (2006)
Permanent URL http://hdl.handle.net/2078/30980