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Muon identification using multivariate techniques in the CMS experiment in proton-proton collisions at $\sqrt{s}$ = 13 TeV

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arxiv 2310.03844 v2 pith:KGNEPJSP submitted 2023-10-05 hep-ex physics.ins-det

classification hep-exphysics.ins-det
keywords muonsidentificationcollisionsdecaysdevelopedexperimenthadronheavy-flavour
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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 $\sqrt{s}$ = 13 TeV collected in 2018 with the CMS experiment at the CERN LHC.

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  1. Measurement of the inclusive WZ production cross section in pp collisions at $\sqrt{s}$ = 13.6 TeV

    hep-ex 2024-12 conditional novelty 5.0 of 10

    The CMS experiment measured the inclusive WZ production cross section at 13.6 TeV and found it consistent with Standard Model predictions.

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