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


Acharya S., Adam J., Adamova D., Adler C., Adolfsson J., Aggarwal M. M., ...Daha Fazla

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, cilt.881, ss.88-127, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 881
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.nima.2017.09.028
  • Dergi Adı: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.88-127
  • Anahtar Kelimeler: 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
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

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.