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The ATLAS Inner Detector commissioning and calibration
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
Univ Michigan, Dept Phys, Randall Lab.ORCID-id: 0000-0002-8913-0981
Vise andre og tillknytning
2010 (engelsk)Inngår i: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 70, nr 3, s. 787-821Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The ATLAS Inner Detector is a composite tracking system consisting of silicon pixels, silicon strips and straw tubes in a 2 T magnetic field. Its installation was completed in August 2008 and the detector took part in data-taking with single LHC beams and cosmic rays. The initial detector operation, hardware commissioning and in-situ calibrations are described. Tracking performance has been measured with 7.6 million cosmic-ray events, collected using a tracking trigger and reconstructed with modular pattern-recognition and fitting software. The intrinsic hit efficiency and tracking trigger efficiencies are close to 100%. Lorentz angle measurements for both electrons and holes, specific energy-loss calibration and transition radiation turn-on measurements have been performed. Different alignment techniques have been used to reconstruct the detector geometry. After the initial alignment, a transverse impact parameter resolution of 22.1 +/- 0.9 mu m and a relative momentum resolution sigma (p) /p=(4.83 +/- 0.16)x10(-4) GeV(-1)xp (T) have been measured for high momentum tracks.

sted, utgiver, år, opplag, sider
2010. Vol. 70, nr 3, s. 787-821
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Identifikatorer
URN: urn:nbn:se:kth:diva-29549DOI: 10.1140/epjc/s10052-010-1366-7ISI: 000285200000013Scopus ID: 2-s2.0-79651474069OAI: oai:DiVA.org:kth-29549DiVA, id: diva2:395587
Forskningsfinansiär
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Merknad
QC 20110207Tilgjengelig fra: 2011-02-07 Laget: 2011-02-07 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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