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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-45317

CMS Collaboration,; Amsler, C; Chiochia, V; De Visscher, S; et al, (2010). Alignment of the CMS silicon tracker during commissioning with cosmic rays. Journal of Instrumentation, 5(3):T03009.

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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.

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31 citations in Web of Science®
37 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
DDC:530 Physics
Language:English
Date:2010
Deposited On:13 Feb 2011 19:27
Last Modified:27 Nov 2013 20:36
Publisher:Institute of Physics Publishing
ISSN:1748-0221
Publisher DOI:10.1088/1748-0221/5/03/T03009
Related URLs:http://arxiv.org/abs/0910.2505

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