The ATLAS Inner Detector commissioning and calibration

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,...

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Autor principal: Multitudinario:2570
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v70_n3_p787_Multitudinario
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14346044_v70_n3_p787_Multitudinario2023-10-03T16:14:38Z The ATLAS Inner Detector commissioning and calibration Multitudinario:2570 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 μm and a relative momentum resolution σ p /p=(4. 83±0. 16)×10 -4 GeV -1 ×p T have been measured for high momentum tracks. © 2010 CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v70_n3_p787_Multitudinario
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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 μm and a relative momentum resolution σ p /p=(4. 83±0. 16)×10 -4 GeV -1 ×p T have been measured for high momentum tracks. © 2010 CERN for the benefit of the ATLAS collaboration.
format JOUR
author Multitudinario:2570
spellingShingle Multitudinario:2570
The ATLAS Inner Detector commissioning and calibration
author_facet Multitudinario:2570
author_sort Multitudinario:2570
title The ATLAS Inner Detector commissioning and calibration
title_short The ATLAS Inner Detector commissioning and calibration
title_full The ATLAS Inner Detector commissioning and calibration
title_fullStr The ATLAS Inner Detector commissioning and calibration
title_full_unstemmed The ATLAS Inner Detector commissioning and calibration
title_sort atlas inner detector commissioning and calibration
url http://hdl.handle.net/20.500.12110/paper_14346044_v70_n3_p787_Multitudinario
work_keys_str_mv AT multitudinario2570 theatlasinnerdetectorcommissioningandcalibration
AT multitudinario2570 atlasinnerdetectorcommissioningandcalibration
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