Measurement of the response of the ATLAS liquid argon barrel calorimeter to electrons at the 2004 combined test-beam

M. Aharrouche (1) , C. Adam-Bourdarios (2) , M. Aleksa , D. Banfi , D. Benchekroun , K. Benslama , M. Boonekamp (3) , T. Carli , L. Carminati , H. Chen , M. Citterio , D. Dannheim , M. Delmastro , F. Derue (4) , B. Di Girolamo , M. El Kacimi (1) , M. Fanti , R. Froeschl , D. Fournier (2) , K.-J. Grahn , M. Kado (2) , N. Kerschen , R. Lafaye (1) , B. Laforge (4) , W. Lampl , S. Laplace (1) , M. Lechowski (2) , D. Lelas (2) , Z. Liangm , K. Loureiro , B. Lund-Jensen , H. Ma , L. Mandelli , M. Mazzanti , R. Mcpherson , Z. Meng , S. Paganis , D. Prieur (1) , P. Puzo (2) , M. Ridel (4) , I. Riu , D. Rousseau (2) , G. Sauvage (1) , P. Schwemling (4) , S. Simion , F. Spano , A. Straessner , F. Tarrade (1) , F. Tartarelli , M. Thioye , G. Unald (2) , H. Wilkens , I. Wingerter-Seez (1) , H. Zhang (5)

1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 LAL - Laboratoire de l'Accélérateur Linéaire
3 DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
4 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
5 CPPM - Centre de Physique des Particules de Marseille

During summer and fall 2004, the response of a full slice of the ATLAS barrel de, tector to different particles was studied in controlled beam. One module of the ATLAS , liquid argon barrel calorimeter – identical to the production modules and read out by the final front-end and back-end electronics – was used for electromagnetic calorimetry. This paper presents and discusses the electron performance of the LAr barrel calorime ter, including linearity, uniformity, and resolution with different amounts of material upstream the calorimeter and energies ranging from 1GeV to 250GeV.

Mots clés: ATLAS combined testbeam; Liquid Argon calorimeter; Calorimeter linearity; Calorimeter uniformity; Calorimeter resolution

Domaines: Physique des Hautes Energies - Expérience [hep-ex]; Instrumentations et Détecteurs [physics.ins-det]

M. Aharrouche, C. Adam-Bourdarios, M. Aleksa, D. Banfi, D. Benchekroun, et al.. Measurement of the response of the ATLAS liquid argon barrel calorimeter to electrons at the 2004 combined test-beam. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2010, 614, pp.400-432. ⟨10.1016/j.nima.2009.12.055⟩. ⟨in2p3-00444170⟩