Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Journal of Instrumentation Année : 2010

Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays

S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
R. Granier de Cassagnac
P. Paganini
C. Thiebaux
J.-L. Agram
A. Besson
E. Conte
P. van Hove
N. Chanon
D. Contardo
H. El Mamouni
  • Fonction : Auteur
CMS
M. Lethuillier
P. Verdier

Résumé

The CMS silicon tracker, consisting of 1440 silicon pixel and 15148 silicon strip detector modules, has been aligned using more than three million cosmic ray charged particles, with additional information from optical surveys. The positions of the modules were determined with respect to cosmic ray trajectories to a precision of 3-4 microns RMS in the barrel and 3-14 microns RMS in the endcap in the most sensitive coordinate. The results have been validated by several methods, including the laser alignment system, and compared with predictions obtained from simulation. Correlated systematic effects have been investigated. The track parameter resolutions obtained with this alignment are close to the design performance.

Dates et versions

in2p3-00664774 , version 1 (31-01-2012)

Identifiants

Citer

S. Chatrchyan, P. Nedelec, D. Sillou, M. Besancon, R. Chipaux, et al.. Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays. Journal of Instrumentation, 2010, 5(03), pp.T03009. ⟨10.1088/1748-0221/5/03/T03009⟩. ⟨in2p3-00664774⟩
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