The Transition Radiation Detector (TRD) was designed and built to enhance the capabilities of the ALICE detector at the Large Hadron Collider (LHC). While aimed at providing electron identification and triggering, the TRD also contributes significantly to the track reconstruction and calibration in the central barrel of ALICE. In this paper the design, construction, operation, and performance of this detector are discussed. A pion rejection factor of up to 410 is achieved at a momentum of 1 GeV/c in p-Pb collisions and the resolution at high transverse momentum improves by about 40% when including the TRD information in track reconstruction. The triggering capability is demonstrated both for jet, light nuclei, and electron selection. (c) 2017 CERN for the benefit of the Authors. Published by Elsevier B.V.

The ALICE Transition Radiation Detector: Construction, operation, and performance / Acharya, S., Adam, J., Adamova, D., Adler, C., Adolfsson, J., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, N., Ahn, S.U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, S.N., Antonczyk, D., Arend, A., Alba, J.L.B., Albuquerque, D.S.D., et al.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 881:(2018), pp. 88-127. [10.1016/j.nima.2017.09.028]

The ALICE Transition Radiation Detector: Construction, operation, and performance

Cunqueiro, L.;Meddi, F.;
2018

Abstract

The Transition Radiation Detector (TRD) was designed and built to enhance the capabilities of the ALICE detector at the Large Hadron Collider (LHC). While aimed at providing electron identification and triggering, the TRD also contributes significantly to the track reconstruction and calibration in the central barrel of ALICE. In this paper the design, construction, operation, and performance of this detector are discussed. A pion rejection factor of up to 410 is achieved at a momentum of 1 GeV/c in p-Pb collisions and the resolution at high transverse momentum improves by about 40% when including the TRD information in track reconstruction. The triggering capability is demonstrated both for jet, light nuclei, and electron selection. (c) 2017 CERN for the benefit of the Authors. Published by Elsevier B.V.
2018
transition radiation detector; multi-wire proportional drift chamber;; fibre/foam sandwich radiator; Xenon-based gas mixture; tracking;; Ionisation energy loss; dE/dx; TR; electron-pion identification; Neural; network; trigger; COLLIDING BEAM EXPERIMENT; ELECTRON IDENTIFICATION; DRIFT CHAMBERS; TRD; PROTOTYPES; ENERGY-LOSS; GEV/C; COLLISIONS; PIONS
01 Pubblicazione su rivista::01a Articolo in rivista
The ALICE Transition Radiation Detector: Construction, operation, and performance / Acharya, S., Adam, J., Adamova, D., Adler, C., Adolfsson, J., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, N., Ahn, S.U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, S.N., Antonczyk, D., Arend, A., Alba, J.L.B., Albuquerque, D.S.D., et al.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 881:(2018), pp. 88-127. [10.1016/j.nima.2017.09.028]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1076839
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