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Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2010

CMS Tracking Performance Results from early LHC Operation

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
V. Sordini
P. Verdier

Résumé

The first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeV were recorded by the CMS detector in December 2009. The trajectories of charged particles produced in the collisions were reconstructed using the all-silicon Tracker and their momenta were measured in the 3.8 T axial magnetic field. Results from the Tracker commissioning are presented including studies of timing, efficiency, signal-to-noise, resolution, and ionization energy. Reconstructed tracks are used to benchmark the performance in terms of track and vertex resolutions, reconstruction of decays, estimation of ionization energy loss, as well as identification of photon conversions, nuclear interactions, and heavy-flavour decays.

Dates et versions

in2p3-00508542 , version 1 (04-08-2010)

Identifiants

Citer

D. Sillou, M. Besancon, M. Dejardin, D. Denegri, J. Descamps, et al.. CMS Tracking Performance Results from early LHC Operation. European Physical Journal C: Particles and Fields, 2010, 70, pp.1165-1192. ⟨10.1140/epjc/s10052-010-1491-3⟩. ⟨in2p3-00508542⟩
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