Particle identification using the time-over-threshold method in the ATLAS transition radiation tracker

Authors
Akesson, T Arik, E Assamagan, K Baker, K Barbeiro, E Barberis, D Bertelsen, H Bytchkov, V Callahan, J Catinaccio, A Danielsson, H Dittus, F Dolgoshein, B Dressnandt, N Ebenstein, WL Eerola, P Farthouat, P Froidevaux, D Grichkevitch, Y Hajduk, Z Hansen, JR Keener, PT Kelkelidze, G Konovalov, S Kowalski, T Kramarenko, VA Krivchitch, A Laritchev, A Lichard, P Lucotte, A Lundberg, B Luehring, F Mailov, A Manara, A McFarlane, K Mitsou, VA Morozov, S Muraviev, S Nadtochy, A Newcomer, FM Olszowska, J Ogren, H Oh, SH Peshekhonov, V Rembser, C Romaniouk, A Rousseau, D Rust, DR Schegelsky, V Spainski, M Shmeleva, A Smirnov, S Smirnova, LN Sosnovtsev, V Soutchkov, S Spiridenkov, E Tikhomirov, V Van Berg, R Vassilakopoulos, V Wang, C Williams, HH
Citation
T. Akesson et al., Particle identification using the time-over-threshold method in the ATLAS transition radiation tracker, NUCL INST A, 474(2), 2001, pp. 172-187
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
474
Issue
2
Year of publication
2001
Pages
172 - 187
Database
ISI
SICI code
0168-9002(200112)474:2<172:PIUTTM>2.0.ZU;2-0
Abstract
Test-beam studies of the ATLAS Transition Radiation Tracker (TRT) straw tub e performance in terms of electron-pion separation using a ti me-over-thres hold method are described. The test-beam data are compared with Monte Carlo simulations of charged particles passing through the straw tubes of the TR T. For energies below 10 GeV, the time-over-threshold method combined with the standard transition-radiation cluster-counting technique significantly improves the electron-pion separation in the TRT. The use of the time-over- threshold information also provides some kaon-pion separation. thereby sign ificantly enhancing the B-physics capabilities of the ATLAS detector. (C) 2 001 Elsevier Science B.V. All rights reserved.