Combined performance studies for electrons at the 2004 ATLAS combined test-beam

• Published in: Journal of instrumentation 2010, Vol.5 (11), p.P11006-P11006
• Main Authors: Abat, E, Adragna, P, Aharrouche, M, Ahmad, A, Aleksa, M, Anderson, K, Andreazza, A, Arik, E, Baker, O K, Baron, S, Beccherle, R, Boldea, V, Garrido, M Capeáns, Carli, T, Carminati, L, Cauz, D, Cherkaoui, R, Chevalier, L, Cleland, B, Cobal, M, Consonni, M, Radu, A Corso, Costa, M J, Dannheim, D, Davidek, T, Defay, P O, Peso, J Del, Ciaccio, L Di, Dobos, D, Drake, G, Efthymiopoulos, I, Eifert, T F, Kacimi, M El, Fanti, M, Fassouliotis, D, Fenyuk, A, Fergusson, D, Froeschl, R, Gan, K K, Goettfert, T, Gomez, M D, Gonzalez-Sevilla, S, Goujdami, D, Grahn, K-J, Grigalashvili, N, Haeberli, C, Haertel, R, Hance, M, Heinemann, F E W, Hostachy, J Y, Hulsbergen, W, Hurwitz, M, Plante, I Jen-La, Kado, M, Khramov, E, Kolos, S, Konovalov, S P, Lanni, F, Lechowski, M, Leitner, R, Lipniacka, A, Ma, H, Garcia, S Marti i, Martin, F, McPherson, R, Mikulec, B, Morettini, P, Nakamura, K, Negri, A, Paolone, V, Petersen, T C, Phillips, P W, Pinto, B, Podlyski, F, Poveda, J, Price, M J, Prieur, D, Reznicek, P, Roe, S, Rousseau, D, Salzburger, A, Schiavi, C, Schwemling, P, Seixas, J M, Seliverstov, D M, Serin, L, Simion, S, Smirnov, S Yu, Stanek, R, Tayalati, Y, Unal, G, Usai, G, Valkar, S, Vassilakopoulos, V I, Vernocchi, F, Vinogradov, V, Volpi, M, Wilkens, H, Yasu, Y, Zenin, A
• Format: Article
• Language: English
• Subjects: Accelerator Physics and Instrumentation; Acceleratorfysik och instrumentering; Calorimeters; Ciências Físicas; Ciências Naturais; Elementarpartikelfysik; Elementary particle physics; Fysik; High Energy Physics - Experiment; Large detector systems for particle and astroparticle; Large detector systems for particle and astroparticle physics; NATURAL SCIENCES; NATURVETENSKAP; Particle tracking detectors; Physical Sciences; Physics; Science & Technology; Transition radiation detectors
• ISSN: 1748-0221; 1748-0221
• DOI: 10.1088/1748-0221/5/11/P11006

In 2004 at the ATLAS (A Toroidal LHC ApparatuS) combined test beam, one slice of the ATLAS barrel detector (including an Inner Detector set-up and the Liquid Argon calorimeter) was exposed to particles from the H8 SPS beam line at CERN. It was the first occasion to test the combined electron performance of ATLAS. This paper presents results obtained for the momentum measurement p with the Inner Detector and for the performance of the electron measurement with the LAr calorimeter (energy E linearity and resolution) in the presence of a magnetic field in the Inner Detector for momenta ranging from 20 GeV/c to 100 GeV/c. Furthermore the particle identification capabilities of the Transition Radiation Tracker, Bremsstrahlungs-recovery algorithms relying on the LAr calorimeter and results obtained for the E/p ratio and a way how to extract scale parameters will be discussed.