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

Shreyasi Acharya, Jaroslav Adam, Dagmar Adamova, Clemens Adler, Jonatan Adolfsson, Madan Mohan Aggarwal, Gianluca Aglieri Rinella, Michelangelo Agnello, Neelima Agrawal, Zubayer Ahammed, Nazeer Ahmad, Sang Un Ahn (+1106 others)
2018 Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment  
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
more » ... 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.
doi:10.15120/gsi-2018-00105 fatcat:jx6yxyyjkjb5hgv7aotkcebx2a