Performance of the CMS Cathode Strip Chambers with Cosmic Rays

S. Chatrchyan , P. Nedelec (1) , D. Sillou (1) , M. Besancon (2) , R. Chipaux (2) , M. Dejardin (2) , D. Denegri (2) , J. Descamps (2) , B. Fabbro (2) , J.L. Faure (2) , F. Ferri (2) , S. Ganjour (2) , F.X. Gentit (2) , A. Givernaud (2) , P. Gras (2) , G. Hamel de Monchenault (2) , P. Jarry (2) , M.C. Lemaire (2) , E. Locci (2) , J. Malcles (2) , M. Marionneau (2) , L. Millischer (2) , J. Rander (2) , A. Rosowsky (2) , D. Rousseau (2) , M. Titov (2) , P. Verrecchia (2) , S. Baffioni (3) , L. Bianchini (3) , M. Bluj (3) , Pierre Busson (3) , C. Charlot (3) , L. Dobrzynski (3) , R. Granier de Cassagnac (3) , M. Haguenauer (3) , P. Mine (3) , P. Paganini (3) , Y. Sirois (3) , C. Thiebaux (3) , A. Zabi (3) , J.-L. Agram (4) , A. Besson (4) , D. Bloch (4) , D. Bodin (4) , J.-M. Brom (4) , E. Conte (4) , F. Drouhin (4) , J.-C. Fontaine (4) , D. Gele (4) , U. Goerlach (4) , L. Gross (4) , P. Juillot (4) , A.-C. Le Bihan (4) , Y. Patois (4) , J. Speck (4) , P. van Hove (4) , C. Baty (5) , M. Bedjidian (5) , J. Blaha (5) , G. Boudoul (5) , H. Brun (5) , N. Chanon (5) , R. Chierici (5) , D. Contardo (5) , P. Depasse (5) , T. Dupasquier (5) , H. El Mamouni (6) , F. Fassi (5, 7) , J. Fay (5) , S. Gascon (5) , B. Ille (5) , T. Kurca (5) , T. Le Grand (5) , M. Lethuillier (5) , N. Lumb (5) , L. Mirabito (5) , S. Perries (5) , M. Vander Donckt (5) , P. Verdier (5)

1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
3 LLR - Laboratoire Leprince-Ringuet
4 DRS-IPHC - Département Recherches Subatomiques
5 IPNL - Institut de Physique Nucléaire de Lyon
6 CMS
7 CC-IN2P3 - Centre de Calcul de l'IN2P3

The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns.

Domaines: Instrumentations et Détecteurs [physics.ins-det]

S. Chatrchyan, P. Nedelec, D. Sillou, M. Besancon, R. Chipaux, et al.. Performance of the CMS Cathode Strip Chambers with Cosmic Rays. Journal of Instrumentation, 2010, 5(03), pp.T03018. ⟨10.1088/1748-0221/5/03/T03018⟩. ⟨in2p3-00664838⟩