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Performance of the ATLAS Transition Radiation Tracker in Run 1 of the LHC: tracker properties
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-6945-1916
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2840
2017 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 12, no 5, P05002Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2017. Vol. 12, no 5, P05002
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-211777DOI: 10.1088/1748-0221/12/05/P05002ISI: 000405076000002Scopus ID: 2-s2.0-85021139537OAI: oai:DiVA.org:kth-211777DiVA: diva2:1130950
Note

QC 20170811

Available from: 2017-08-11 Created: 2017-08-11 Last updated: 2017-08-11Bibliographically approved

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Kastanas, Konstatinos A.Lund-Jensen, BengtSidebo, P. EdvinStrandberg, Jonas

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