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Muon reconstruction and identification efficiency in ATLAS using the full Run 2 pp collision data set at √s=13 TeV

Aad, G. ; Åkesson, T.P.A. LU orcid ; Bocchetta, S.S. LU ; Corrigan, E.E. LU ; Doglioni, C. LU ; Geisen, J. LU orcid ; Gregersen, K. LU ; Hansen, E. LU ; Hedberg, V. LU and Jarlskog, G. LU , et al. (2021) In European Physical Journal C 81(7).
Abstract
This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb - 1 of pp collision data at s=13 TeV collected between 2015 and 2018 during Run 2 of the LHC. The increased instantaneous luminosity delivered by the LHC over this period required a reoptimisation of the criteria for the identification of prompt muons. Improved and newly developed algorithms were deployed to preserve high muon identification efficiency with a low misidentification rate and good momentum resolution. The availability of large samples of Z→ μμ and J/ ψ→ μμ decays, and the minimisation of systematic uncertainties, allows the efficiencies of criteria for muon identification, primary vertex association, and... (More)
This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb - 1 of pp collision data at s=13 TeV collected between 2015 and 2018 during Run 2 of the LHC. The increased instantaneous luminosity delivered by the LHC over this period required a reoptimisation of the criteria for the identification of prompt muons. Improved and newly developed algorithms were deployed to preserve high muon identification efficiency with a low misidentification rate and good momentum resolution. The availability of large samples of Z→ μμ and J/ ψ→ μμ decays, and the minimisation of systematic uncertainties, allows the efficiencies of criteria for muon identification, primary vertex association, and isolation to be measured with an accuracy at the per-mille level in the bulk of the phase space, and up to the percent level in complex kinematic configurations. Excellent performance is achieved over a range of transverse momenta from 3 GeV to several hundred GeV, and across the full muon detector acceptance of | η| < 2.7. © 2021, CERN for the benefit of the ATLAS collaboration. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
81
issue
7
article number
578
publisher
Springer
external identifiers
  • scopus:85129832684
ISSN
1434-6044
DOI
10.1140/epjc/s10052-021-09233-2
language
English
LU publication?
yes
id
1746dba9-68eb-4145-90c8-9e3939ed46d4
date added to LUP
2022-09-14 11:41:10
date last changed
2023-04-09 21:42:56
@article{1746dba9-68eb-4145-90c8-9e3939ed46d4,
  abstract     = {{This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb - 1 of pp collision data at s=13 TeV collected between 2015 and 2018 during Run 2 of the LHC. The increased instantaneous luminosity delivered by the LHC over this period required a reoptimisation of the criteria for the identification of prompt muons. Improved and newly developed algorithms were deployed to preserve high muon identification efficiency with a low misidentification rate and good momentum resolution. The availability of large samples of Z→ μμ and J/ ψ→ μμ decays, and the minimisation of systematic uncertainties, allows the efficiencies of criteria for muon identification, primary vertex association, and isolation to be measured with an accuracy at the per-mille level in the bulk of the phase space, and up to the percent level in complex kinematic configurations. Excellent performance is achieved over a range of transverse momenta from 3 GeV to several hundred GeV, and across the full muon detector acceptance of | η| &lt; 2.7. © 2021, CERN for the benefit of the ATLAS collaboration.}},
  author       = {{Aad, G. and Åkesson, T.P.A. and Bocchetta, S.S. and Corrigan, E.E. and Doglioni, C. and Geisen, J. and Gregersen, K. and Hansen, E. and Hedberg, V. and Jarlskog, G. and Kellermann, E. and Konya, B. and Lytken, E. and Mankinen, K.H. and Marcon, C. and Mjörnmark, J.U. and Mullier, G.A. and Poettgen, R. and Poulsen, T. and Skorda, E. and Smirnova, O. and Zwalinski, L.}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Muon reconstruction and identification efficiency in ATLAS using the full Run 2 pp collision data set at √s=13 TeV}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-021-09233-2}},
  doi          = {{10.1140/epjc/s10052-021-09233-2}},
  volume       = {{81}},
  year         = {{2021}},
}