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. © 2017 CERN for the benefit of the ALICE Collaboration.
Original language | English |
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Pages (from-to) | 88-127 |
Number of pages | 40 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 881 |
DOIs | |
Publication status | Published - 2018 |
Bibliographical note
Export Date: 22 May 2018Subject classification (UKÄ)
- Subatomic Physics
- Accelerator Physics and Instrumentation
Free keywords
- dE/dx
- Electron-pion identification
- Fibre/foam sandwich radiator
- Ionisation energy loss
- Multi-wire proportional drift chamber
- Neural network
- TR
- Tracking
- Transition radiation detector
- Trigger
- Xenon-based gas mixture
- Elementary particles
- Energy dissipation
- Hadrons
- Lead
- Neural networks
- Surface discharges
- Xenon
- Ionisation energies
- Pion identification
- Transition radiation detectors
- Electron irradiation