Beaumont, Wim

Chatrchyan, S.

de Wolf, Eddi

Druzhkin, Dmitry

et al.

Janssen, Xavier

Khachatryan, V.

Mucibello, Luca

Rougny, Romain

Selvaggi, Michele

Sirunyan, A. M.

van Haevermaet, Hans

Van Mechelen, Pierre

Van Remortel, Nick

Abstract: 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 \ub12 ns

Janssen, Tahys

Institutional Repository Universiteit Antwerpen

Performance of CMS hadron calorimeter timing and synchronization using test beam, cosmic ray, and LHC beam data

Performance of CMS hadron calorimeter timing and synchronization using test beam, cosmic ray, and LHC beam data

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Institutional Repository Universiteit Antwerpen