The CMS silicon tracker, consisting of 1440 silicon pixel and 15 148 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 an average 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 studies, including laser beam cross-checks, track fit self-consistency, track residuals in overlapping module regions, and track parameter resolution, and are 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.

(2010). Alignment of the CMS silicon tracker during commissioning with cosmic rays [journal article - articolo]. In JOURNAL OF INSTRUMENTATION. Retrieved from http://hdl.handle.net/10446/187118

Alignment of the CMS silicon tracker during commissioning with cosmic rays

S. Mattiazzo;
2010-01-01

Abstract

The CMS silicon tracker, consisting of 1440 silicon pixel and 15 148 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 an average 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 studies, including laser beam cross-checks, track fit self-consistency, track residuals in overlapping module regions, and track parameter resolution, and are 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.
articolo
2010
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Adam, W.; Arnold, B.; Bergauer, H.; Bergauer, T.; Dragicevic, M.; Eichberger, M.; Ero, J.; Friedl, M...espandi
(2010). Alignment of the CMS silicon tracker during commissioning with cosmic rays [journal article - articolo]. In JOURNAL OF INSTRUMENTATION. Retrieved from http://hdl.handle.net/10446/187118
File allegato/i alla scheda:
File Dimensione del file Formato  
CMS_Collaboration_2010_J._Inst._5_T03009.pdf

Solo gestori di archivio

Versione: publisher's version - versione editoriale
Licenza: Licenza default Aisberg
Dimensione del file 2.63 MB
Formato Adobe PDF
2.63 MB Adobe PDF   Visualizza/Apri
Pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/187118
Citazioni
  • Scopus 88
  • ???jsp.display-item.citation.isi??? 87
social impact