Muon identification using multivariate techniques in the CMS experiment in proton-proton collisions at √𝒔 = 13 TeV

The CMS Collaboration, A. Hayrapetyan, A. Tumasyan, W. Adam, Laurent Forthomme, H. Kirschenmann, K. Österberg, M. Voutilainen, Shudhashil Bharthuar, Erik Brücken, F. Garcia, J. Havukainen, Jaana Heikkilä, Kimmo Kallonen, Minsuk Kim, R. Kinnunen, T. Lampén, K. Lassila-Perini, S. Laurila, S. LehtiT. Lindén, Mikko Lotti, P. Luukka, Laura Martikainen, Mikael Erkki Johannes Myllymäki, Milla-Maarit Rantanen, H. Siikonen, E. Tuominen, J. Tuominiemi, Jussi Viinikainen, H. Petrow, T. Tuuva

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The identification of prompt and isolated muons, as well as muons from heavy -flavour hadron decays, is an important task. We developed two multivariate techniques to provide highly efficient identification for muons with transverse momentum greater than 10 GeV. One provides a continuous variable as an alternative to a cut -based identification selection and offers a better discrimination power against misidentified muons. The other one selects prompt and isolated muons by using isolation requirements to reduce the contamination from nonprompt muons arising in heavy-flavour hadron decays. Both algorithms are developed using 59.7 fb-1 of proton-proton collisions data at a centre-of-mass energy of root s = 13 TeV collected in 2018 with the CMS experiment at the CERN LHC.
Original languageEnglish
Article numberP02031
JournalJournal of Instrumentation
Volume19
Issue number2
Number of pages43
ISSN1748-0221
DOIs
Publication statusPublished - Feb 2024
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 114 Physical sciences

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