The ATLAS Inner Detector commissioning and calibration

Article Article scientifique Article The ATLAS Inner Detector commissioning and calibration eng 2010 collaborator Abdelalim Aly Ahmed Aly 641568 collaborator Alexandre Gauthier 660232 collaborator Backes Moritz 662631 collaborator Bell William 683675 collaborator Blondel Alain 133489 collaborator Bucci Francesca 656350 collaborator Clark Allan Geoffrey 24043 collaborator Dao Valerio 686374 collaborator Ferrere Didier 507742 collaborator Gadomski Szymon 652516 collaborator Garcia Navarro Jose Enrique 668256 collaborator Gonzalez Sevilla Sergio 680902 collaborator Goulette Marc 706586 collaborator Hamilton Andrew 644888 collaborator Lister Alison 134321 collaborator Martin Dit Latour Bertrand 685503 collaborator Mora Herrera Maria Clemencia Rosario 662897 collaborator Pasztor Gabriella 98498 collaborator Pohl Martin 96464 collaborator Robichaud-Veronneau Andrée 636055 collaborator Rosselet Laurent 21992 collaborator Urquijo Phillip 666014 collaborator Wu Xin 27612 ATLAS Collaboration 787-821 10.1140/epjc/s10052-010-1366-7 1434-6044 http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-010-1366-7 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. Astronomy Astrophysics and Cosmology Measurement Science and Instrumentation Quantum Field Theories String Theory Nuclear Physics Heavy Ions Hadrons Elementary Particles Quantum Field Theory Dewey 500.2 34 Département de physique nucléaire et corpusculaire 132 false European physical journal. C, Particles and fields 70 3 76440064-0037-4970-abc0-c23e52072683 Article (Published version) Restricted Clark358.pdf 2631873 application/pdf restrictedAccess Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

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The ATLAS Inner Detector commissioning and calibration	European physical journal. C, Particles and fields			2010	584	0

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