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Article: Performance of the ATLAS muon triggers in Run 2

TitlePerformance of the ATLAS muon triggers in Run 2
Authors
KeywordsData acquisition concepts
Data processing methods
Online farms and online filtering
Trigger concepts and systems (hardware and software)
Issue Date2020
PublisherIOP Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/1748-0221
Citation
Journal of Instrumentation, 2020, v. 15 n. 9, p. article no. P09015 How to Cite?
AbstractThe 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.
Persistent Identifierhttp://hdl.handle.net/10722/291181
ISSN
2020 Impact Factor: 1.415
2020 SCImago Journal Rankings: 0.741
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLo, CY-
dc.contributor.authorParedes Hernandez, D-
dc.contributor.authorSalvucci, A-
dc.contributor.authorTAM, KC-
dc.contributor.authorTu, Y-
dc.contributor.authorThe ATLAS collaboration,-
dc.date.accessioned2020-11-07T13:53:22Z-
dc.date.available2020-11-07T13:53:22Z-
dc.date.issued2020-
dc.identifier.citationJournal of Instrumentation, 2020, v. 15 n. 9, p. article no. P09015-
dc.identifier.issn1748-0221-
dc.identifier.urihttp://hdl.handle.net/10722/291181-
dc.description.abstractThe 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.-
dc.languageeng-
dc.publisherIOP Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/1748-0221-
dc.relation.ispartofJournal of Instrumentation-
dc.rightsJournal of Instrumentation. Copyright © IOP Publishing.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [Journal of Instrumentation]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/1748-0221/15/09/P09015-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectData acquisition concepts-
dc.subjectData processing methods-
dc.subjectOnline farms and online filtering-
dc.subjectTrigger concepts and systems (hardware and software)-
dc.titlePerformance of the ATLAS muon triggers in Run 2-
dc.typeArticle-
dc.identifier.emailLo, CY: samuel3@hku.hk-
dc.identifier.emailParedes Hernandez, D: dparedes@hku.hk-
dc.identifier.emailTu, Y: yanjuntu@hku.hk-
dc.identifier.authorityTu, Y=rp01971-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1088/1748-0221/15/09/P09015-
dc.identifier.scopuseid_2-s2.0-85096387405-
dc.identifier.hkuros318646-
dc.identifier.volume15-
dc.identifier.issue9-
dc.identifier.spagearticle no. P09015-
dc.identifier.epagearticle no. P09015-
dc.identifier.isiWOS:000577273400015-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl1748-0221-

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