TY - JOUR
T1 - The ALICE transition radiation detector: Construction, operation, and performance
AU - Acharya, S
AU - Adam, Jaroslav
AU - Adamova, D.
AU - Adler, C.
AU - Adolfsson, Jonatan
AU - Aggarwal, M.M
AU - Christiansen, Peter
AU - Oskarsson, Anders
AU - Silvermyr, David
AU - Stenlund, Evert
AU - Vislavicius, Vytautas
AU - ALICE Collaboration
N1 - Export Date: 22 May 2018
PY - 2018
Y1 - 2018
N2 - 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. © 2017 CERN for the benefit of the ALICE Collaboration.
AB - 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. © 2017 CERN for the benefit of the ALICE Collaboration.
KW - dE/dx
KW - Electron-pion identification
KW - Fibre/foam sandwich radiator
KW - Ionisation energy loss
KW - Multi-wire proportional drift chamber
KW - Neural network
KW - TR
KW - Tracking
KW - Transition radiation detector
KW - Trigger
KW - Xenon-based gas mixture
KW - Elementary particles
KW - Energy dissipation
KW - Hadrons
KW - Lead
KW - Neural networks
KW - Surface discharges
KW - Xenon
KW - Ionisation energies
KW - Pion identification
KW - Transition radiation detectors
KW - Electron irradiation
U2 - 10.1016/j.nima.2017.09.028
DO - 10.1016/j.nima.2017.09.028
M3 - Article
SN - 0167-5087
VL - 881
SP - 88
EP - 127
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -