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

Autori
Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zou, S.

Kolaboracija
ALICE Collaboration

Izvornik
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (0168-9002) 881 (2018); 88-127

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA