Time reconstruction and performance of the CMS electromagnetic calorimeter

• Main Authors: Alver, Burak Han (Author), Bauer, Gerry P (Author), Bendavid, Joshua L. (Author), Busza, Wit (Author), Butz, Erik M. (Author), Cali, Ivan Amos (Author), Chan, M. (Author), D'Enterria, David (Author), Everaerts, Pieter Bruno Bart (Author), Gomez-Ceballos, Guillelmo (Author), Hahn, Kristian Allan (Author), Harris, Philip Coleman (Author), Jaditz, Stephen Hunter (Author), Kim, Y. (Author), Klute, Markus (Author), Lee, Youjin (Author), Li, W. (Author), Loizides, Constantinos (Author), Ma, T. (Author), Miller, M. (Author), Nahn, Steven C. (Author), Paus, Christoph M. E. (Author), Roland, Christof E (Author), Roland, Gunther M (Author), Rudolph, Matthew Scott (Author), Stephans, George S. F. (Author), Sumorok, Konstanty C (Author), Sung, K. (Author), Vaurynovich, Siarhei S. (Author), Wenger, Edward Allen (Author), Wyslouch, Boleslaw (Author), Xie, Si (Author), Yilmaz, Yetkin (Author), Yoon, A. S (Author)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. Department of Nuclear Science and Engineering (Contributor)
• Format: Article
• Language: English
• Published: IOP Publishing, 2019-06-19T15:32:04Z.
• Subjects: Article
• Online Access: Get fulltext

The resolution and the linearity of time measurements made with the CMS electromagnetic calorimeter are studied with samples of data from test beam electrons, cosmic rays, and beam-produced muons. The resulting time resolution measured by lead tungstate crystals is better than 100 ps for energy deposits larger than 10 GeV. Crystal-to-crystal synchronization with a precision of 500 ps is performed using muons produced with the first LHC beams in 2008.