Performance of the CMS Level-1 trigger during commissioning with cosmic ray muons and LHC beams
Author(s)Alver, Burak Han; Bauer, Gerry P; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; D'Enterria, David; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Hahn, K. A.; Harris, Philip Coleman; Jaditz, Stephen Hunter; Kim, Yoonik; Klute, Markus; Lee, Y.-J.; Li, W.; Loizides, Constantinos; Ma, T.; Miller, M.; Nahn, Steven C.; Paus, Christoph M. E.; Roland, Christof E; Roland, Gunther M; Rudolph, Matthew Scott; Stephans, George S. F.; Sumorok, Konstanty C; Sung, K.; Vaurynovich, Siarhei S.; Wenger, Edward Allen; Wyslouch, Boleslaw; Xie, Si; Yilmaz, Yetkin; Yoon, A. S.; CMS Collaboration; ... Show more Show less
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The CMS Level-1 trigger was used to select cosmic ray muons and LHC beam events during data-taking runs in 2008, and to estimate the level of detector noise. This paper describes the trigger components used, the algorithms that were executed, and the trigger synchronisation. Using data from extended cosmic ray runs, the muon, electron/photon, and jet triggers have been validated, and their performance evaluated. Efficiencies were found to be high, resolutions were found to be good, and rates as expected.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Journal of Instrumentation
Chatrchyan, S. et al. "Performance of the CMS Level-1 trigger during commissioning with cosmic ray muons and LHC beams." Journal of Instrumentation 5 (March 2018): T03002 © 2010 IOP Publishing Ltd and SISSA