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Performance of the ATLAS liquid argon endcap calorimeter in the pseudorapidity region 2.5<|eta|<4.0 in beam tests

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Autori: ATLAS Liquid Argon EMEC/HEC/FCAL Collaboration

Editorial: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 593, Issue 3, p.324-342, 2008.


The pseudorapidity region 2.5<|eta|<4.0 in ATLAS is a particularly complex transition zone between the endcap and forward calorimeters. A set-up consisting of View the MathML source resp. View the MathML source of the full azimuthal acceptance of the ATLAS liquid argon endcap and forward calorimeters has been exposed to beams of electrons, pions and muons in the energy range View the MathML source at the CERN SPS. Data have been taken in the endcap and forward calorimeter regions as well as in the transition region. This beam test set-up corresponds very closely to the geometry and support structures in ATLAS. A detailed study of the performance in the endcap and forward calorimeter regions is described. The data are compared with MC simulations based on GEANT 4 models.

Cuvinte cheie: Liquid Argon calorimeter; High energy physics detector; Calorimeter; ATLAS detector