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

The ATLAS collaboration

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Article numberP05002
JournalJournal of Instrumentation
Volume12
Issue number5
DOIs
StatePublished - May 3 2017

Fingerprint

Colliding beam accelerators
Radiation
radiation
Protons
Gas Mixture
Lead
Gas mixtures
gas mixtures
protons
Xenon
xenon
Argon
Momentum
Collision
Monte Carlo Simulation
Detector
argon
Detectors
momentum
collisions

Keywords

  • Particle tracking detectors (Gaseous detectors)
  • Transition radiation detectors

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

Cite this

Performance of the ATLAS Transition Radiation Tracker in Run 1 of the LHC : Tracker properties. / The ATLAS collaboration.

In: Journal of Instrumentation, Vol. 12, No. 5, P05002, 03.05.2017.

Research output: Contribution to journalArticle

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abstract = "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.",
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