The performance of muon reconstruction in CMS is evaluated using a large data sample of cosmic-ray muons recorded in 2008. Efficiencies of various high-level trigger, identification, and reconstruction algorithms have been measured for a broad range of muon momenta, and were found to be in good agreement with expectations from Monte Carlo simulation. The relative momentum resolution for muons crossing the barrel part of the detector is better than 1% at 10 GeV/c and is about 8% at 500 GeV/c, the latter being only a factor of two worse than expected with ideal alignment conditions. Muon charge misassignment ranges from less than 0.01% at 10 GeV/c to about 1% at 500 GeV/c.

Performance of CMS muon reconstruction in cosmic-ray events / Chatrchyan, S., Khachatryan, V., Sirunyan, A.M., Adam, W., Arnold, B., Bergauer, H., Bergauer, T., Dragicevic, M., Eichberger, M., Eroe, J., Friedl, M., Fruehwirth, R., Ghete, V.M., Hammer, J., Ansel, S.H., Hoch, M., Hoermann, N., Hrubec, J., Jeitler, M., Kasieczka, G., et al.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - ELETTRONICO. - 5:(2010), pp. T03022-0. [10.1088/1748-0221/5/03/T03022]

Performance of CMS muon reconstruction in cosmic-ray events

BROCCOLO, GIUSEPPE;CIULLI, VITALIANO;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;FROSALI, SIMONE;GENTA, CHIARA;LANDI, GREGORIO;LENZI, PIERGIULIO;TROPIANO, ANTONIO;
2010

Abstract

The performance of muon reconstruction in CMS is evaluated using a large data sample of cosmic-ray muons recorded in 2008. Efficiencies of various high-level trigger, identification, and reconstruction algorithms have been measured for a broad range of muon momenta, and were found to be in good agreement with expectations from Monte Carlo simulation. The relative momentum resolution for muons crossing the barrel part of the detector is better than 1% at 10 GeV/c and is about 8% at 500 GeV/c, the latter being only a factor of two worse than expected with ideal alignment conditions. Muon charge misassignment ranges from less than 0.01% at 10 GeV/c to about 1% at 500 GeV/c.
2010
5
T03022
0
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Adam, W.; Arnold, B.; Bergauer, H.; Bergauer, T.; Dragicevic, M.; Eichberger, M.; Eroe, J.; Friedl, ...espandi
File in questo prodotto:
File Dimensione Formato  
performance.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 1.11 MB
Formato Adobe PDF
1.11 MB Adobe PDF   Richiedi una copia all'autore

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/592479
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 79
  • ???jsp.display-item.citation.isi??? 86
social impact