Title
Alignment of the CMS silicon tracker during commissioning with cosmic rays Alignment of the CMS silicon tracker during commissioning with cosmic rays
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol :Institute of Physics ,
Subject
Physics
Source (journal)
Journal of instrumentation. - Bristol, 2006, currens
Volume/pages
5(2010) :3 , p. T03009,1-T03009,40
ISSN
1748-0221
Article Reference
T03009
ISI
000280524100024
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
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 34 microns RMS in the barrel and 314 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.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/240bcd/83222.pdf
Handle