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Performance of the ATLAS muon triggers in Run 2

G., Aad ; Åkesson, T. LU orcid ; Bocchetta, S. LU ; Corrigan, E. LU ; Doglioni, C. LU ; Geisen, J. LU orcid ; Gregersen, K. LU ; Hansen, E. LU ; Hedberg, V. LU and Jarlskog, G. LU , et al. (2020) In Journal of Instrumentation 15(9).
Abstract
The performance of the ATLAS muon trigger system is evaluated with proton-proton (pp) and heavy-ion (HI) collision data collected in Run 2 during 2015-2018 at the Large Hadron Collider. It is primarily evaluated using events containing a pair of muons from the decay of Z bosons to cover the intermediate momentum range between 26 GeV and 100 GeV. Overall, the efficiency of the single-muon triggers is about 68% in the barrel region and 85% in the endcap region. The pT range for efficiency determination is extended by using muons from decays of Jψ mesons, W bosons, and top quarks. The performance in HI collision data is measured and shows good agreement with the results obtained in pp collisions. The muon trigger shows uniform and stable... (More)
The performance of the ATLAS muon trigger system is evaluated with proton-proton (pp) and heavy-ion (HI) collision data collected in Run 2 during 2015-2018 at the Large Hadron Collider. It is primarily evaluated using events containing a pair of muons from the decay of Z bosons to cover the intermediate momentum range between 26 GeV and 100 GeV. Overall, the efficiency of the single-muon triggers is about 68% in the barrel region and 85% in the endcap region. The pT range for efficiency determination is extended by using muons from decays of Jψ mesons, W bosons, and top quarks. The performance in HI collision data is measured and shows good agreement with the results obtained in pp collisions. The muon trigger shows uniform and stable performance in good agreement with the prediction of a detailed simulation. Dedicated multi-muon triggers with kinematic selections provide the backbone to beauty, quarkonia, and low-mass physics studies. The design, evolution and performance of these triggers are discussed in detail. © 2020 CERN for the benefit of the ATLAS collaboration.. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Data acquisition concepts, Data processing methods, Online farms and online filtering, Trigger concepts and systems (hardware and software), Efficiency, Germanium compounds, Hadrons, Heavy ions, End-cap regions, Large Hadron Collider, Low mass, Momentum range, Muon trigger, Quarkonia, Stable performance, Top quarks, Bosons
in
Journal of Instrumentation
volume
15
issue
9
article number
P09015
publisher
IOP Publishing
external identifiers
  • scopus:85096387405
ISSN
1748-0221
DOI
10.1088/1748-0221/15/09/P09015
language
English
LU publication?
yes
id
ac1d457d-34e4-4ea8-a647-9e862bfa2a47
date added to LUP
2022-04-04 14:06:19
date last changed
2023-04-02 22:38:51
@article{ac1d457d-34e4-4ea8-a647-9e862bfa2a47,
  abstract     = {{The performance of the ATLAS muon trigger system is evaluated with proton-proton (pp) and heavy-ion (HI) collision data collected in Run 2 during 2015-2018 at the Large Hadron Collider. It is primarily evaluated using events containing a pair of muons from the decay of Z bosons to cover the intermediate momentum range between 26 GeV and 100 GeV. Overall, the efficiency of the single-muon triggers is about 68% in the barrel region and 85% in the endcap region. The pT range for efficiency determination is extended by using muons from decays of Jψ mesons, W bosons, and top quarks. The performance in HI collision data is measured and shows good agreement with the results obtained in pp collisions. The muon trigger shows uniform and stable performance in good agreement with the prediction of a detailed simulation. Dedicated multi-muon triggers with kinematic selections provide the backbone to beauty, quarkonia, and low-mass physics studies. The design, evolution and performance of these triggers are discussed in detail. © 2020 CERN for the benefit of the ATLAS collaboration..}},
  author       = {{G., Aad and Åkesson, T. and Bocchetta, S. and Corrigan, 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. and Marcon, C. and Mjörnmark, J. and Mullier, G. and Poettgen, R. and Poulsen, T. and Skorda, E. and Smirnova, O. and L., Zwalinski}},
  issn         = {{1748-0221}},
  keywords     = {{Data acquisition concepts; Data processing methods; Online farms and online filtering; Trigger concepts and systems (hardware and software); Efficiency; Germanium compounds; Hadrons; Heavy ions; End-cap regions; Large Hadron Collider; Low mass; Momentum range; Muon trigger; Quarkonia; Stable performance; Top quarks; Bosons}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{9}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Instrumentation}},
  title        = {{Performance of the ATLAS muon triggers in Run 2}},
  url          = {{http://dx.doi.org/10.1088/1748-0221/15/09/P09015}},
  doi          = {{10.1088/1748-0221/15/09/P09015}},
  volume       = {{15}},
  year         = {{2020}},
}