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



Acharya, S, Adam, J, Adamova, D, Adler, C, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z
et al (show 1106 more authors) (2018) The ALICE Transition Radiation Detector: Construction, operation, and performance. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 881. pp. 88-127.

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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.

Item Type: Article
Uncontrolled Keywords: 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
Depositing User: Symplectic Admin
Date Deposited: 11 Jan 2018 11:40
Last Modified: 19 Jan 2023 06:46
DOI: 10.1016/j.nima.2017.09.028
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3015846