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

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.

79 pages, 60 captioned figures, 6 tables, authors from page 74, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3740

References in corpus (11)

• Big-Bang Nucleosynthesis
• The equation of state in (2+1)-flavor QCD
• Pseudorapidity and transverse-momentum distributions of charged particles in proton-proton collisions at $\sqrt{\text{s}}$ = 13 TeV
• Charged-particle multiplicities in proton-proton collisions at $\sqrt{s}$ = 0.9 to 8 TeV
• Determination of the event collision time with the ALICE detector at the LHC
• Measurement of electrons from semileptonic heavy-flavor hadron decays in pp collisions at $\sqrt{s}=2.76$ TeV
• Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions at the LHC
• Performance of the AMS-02 Transition Radiation Detector
• Particle identification in ALICE: a Bayesian approach
• The PreAmplifier ShAper for the ALICE TPC-Detector
• A New Method for the High-Precision Alignment of Track Detectors

Cited by in corpus (19)

• The ALICE experiment: a journey through QCD
• ALICE upgrades during the LHC Long Shutdown 2
• Direct photon production at low transverse momentum in proton-proton collisions at $\sqrt{s}$ = 2.76 and 8 TeV
• Real-time data processing in the ALICE High Level Trigger at the LHC
• Light (anti)nuclei production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Calibration of the photon spectrometer PHOS of the ALICE experiment
• High-resolution spectroscopy of gaseous ${}^{83m}$Kr conversion electrons with the KATRIN experiment
• Performance of the ALICE Electromagnetic Calorimeter
• Track Reconstruction in a High-Density Environment with ALICE
• Analysis of ${}^{83m}$Kr Prompt Scintillation Signals in the PIXeY Detector
• J/$\psi$ production at midrapidity in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Search for quasi-particle scattering in the quark-gluon plasma with jet splittings in pp and Pb$-$Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=5.02$ TeV
• Measurement of the production of (anti)nuclei in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Light neutral-meson production in pp collisions at $\sqrt{\mathbf{s}}$ = 13 TeV
• Measurement of (anti)alpha production in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of $\omega$ meson production in pp collisions at $\sqrt{s}$ = 13 TeV
• Gamma-ray energies and intensities observed in decay chain ${}^{83}Rb$/${}^{83m}Kr$/${}^{83}Kr$
• Development and characterization of MPGD-based transition radiation detectors
• Strong Energy Dependent Transition Radiation in a Photonic Crystal