Performance of the ATLAS Transition Radiation Tracker in Run 1 of the LHC: Tracker properties

The tracking performance parameters of the ATLAS Transition Radiation Tracker (TRT) as part of the ATLAS inner detector are described in this paper for different data-taking conditions in proton-proton, proton-lead and lead-lead collisions at the Large Hadron Collider (LHC). The performance is studi...

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Detalles Bibliográficos
Autor principal: Aaboud, M.
Formato: JOUR
Materias:
Particle tracking detectors (Gaseous detectors)
Transition radiation detectors
Argon
Gas mixtures
Gases
Monte Carlo methods
Xenon
Gaseous detectors
Large Hadron collider LHC
Particle densities
Particle momentum
Tracking performance
Transition radiation trackers
Two-gas mixtures
Radiation detectors
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17480221_v12_n5_p_Aaboud
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The tracking performance parameters of the ATLAS Transition Radiation Tracker (TRT) as part of the ATLAS inner detector are described in this paper for different data-taking conditions in proton-proton, proton-lead and lead-lead collisions at the Large Hadron Collider (LHC). The performance is studied using data collected during the first period of LHC operation (Run 1) and is compared with Monte Carlo simulations. The performance of the TRT, operating with two different gas mixtures (xenon-based and argon-based) and its dependence on the TRT occupancy is presented. These studies show that the tracking performance of the TRT is similar for the two gas mixtures and that a significant contribution to the particle momentum resolution is made by the TRT up to high particle densities. © CERN 2017 for the benefit of the ATLAS collaboration.

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