Time reconstruction and performance of the CMS electromagnetic calorimeter
Open Access
- 1 March 2010
- journal article
- research article
- Published by IOP Publishing in Journal of Instrumentation
- Vol. 5 (03) , T03011
- https://doi.org/10.1088/1748-0221/5/03/t03011
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.Keywords
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