Time reconstruction and performance of the CMS electromagnetic calorimeter

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, Youjin; 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.

Author(s)

Alver, Burak Han; Bauer, Gerry P; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; ... Show more

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Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/

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Abstract

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.

Date issued

2010-03

URI

https://hdl.handle.net/1721.1/121357

Department

Massachusetts 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

Journal of Instrumentation

Publisher

IOP Publishing

Citation

Version: Original manuscript

ISSN

1748-0221

Collections

MIT Open Access Articles