Performance of CMS hadron calorimeter timing and synchronization using test beam, cosmic ray, and LHC beam data
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, Kristian Allan; Harris, Philip Coleman; Jaditz, Stephen Hunter; Kim, Y.; 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, S.; Yilmaz, Yetkin; Yoon, A. S.; CMS Collaboration; ... Show more Show less
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This paper discusses the design and performance of the time measurement technique and of the synchronization systems of the CMS hadron calorimeter. Time measurement performance results are presented from test beam data taken in the years 2004 and 2006. For hadronic showers of energy greater than 100 GeV, the timing resolution is measured to be about 1.2 ns. Time synchronization and out-of-time background rejection results are presented from the Cosmic Run At Four Tesla and LHC beam runs taken in the Autumn of 2008. The inter-channel synchronization is measured to be within 2 ns.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal of Instrumentation
Chatrchyan, S. et al. "Performance of CMS hadron calorimeter timing and synchronization using test beam, cosmic ray, and LHC beam data." Journal of Instrumentation 5 (March 2010): T03013 © 2010 IOP Publishing Ltd and SISSA