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

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
Language
INGLESE
art.tipo
Article
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
0168-9002 → 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.