학술논문
The CMS high level trigger.
Document Type
Article
Author
Source
Subject
*LARGE Hadron Collider
*PROTONS
*MUONS
*COLLISIONS (Physics)
*KINETIC theory of matter
*SCATTERING (Physics)
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*
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Language
ISSN
1434-6044
Abstract
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 $\mathcal{O}$ (1000) using a Level-1 hardware trigger. A subsequent factor of $\mathcal{O}$ (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. [ABSTRACT FROM AUTHOR]