UNIGE document Scientific Article
previous document  unige:38670  next document
add to browser collection
Title

The ATLAS Inner Detector commissioning and calibration

CollaborationWith : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Bell, William / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Ferrere, Didier / Gadomski, Szymon / Garcia Navarro, Jose Enrique / Gonzalez Sevilla, Sergio / Goulette, Marc / Hamilton, Andrew / Lister, Alison / Martin Dit Latour, Bertrand / Mora Herrera, Maria Clemencia Rosario / Pasztor, Gabriella / Pohl, Martin / Robichaud-Veronneau, Andrée / Rosselet, Laurent / Urquijo, Phillip / Wu, Xin
Published in European Physical Journal. C. 2010, vol. 70, no. 3, p. 787-821
Abstract 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.
Keywords AstronomyAstrophysics and CosmologyMeasurement Science and InstrumentationQuantum Field TheoriesString TheoryNuclear PhysicsHeavy IonsHadronsElementary ParticlesQuantum Field Theory
Identifiers
Full text
Structures
Citation
(ISO format)
ATLAS COLLABORATION. The ATLAS Inner Detector commissioning and calibration. In: European Physical Journal. C, 2010, vol. 70, n° 3, p. 787-821. https://archive-ouverte.unige.ch/unige:38670

169 hits

0 download

Update

Deposited on : 2014-07-15

Export document
Format :
Citation style :