Evidence for Higgs boson decay to a pair of muons

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dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorEscalante Del Valle, A.
dc.date.accessioned2025-03-09T10:57:53Z
dc.date.available2025-03-09T10:57:53Z
dc.date.issued2021
dc.departmentİstanbul Beykent Üniversitesi
dc.description.abstractEvidence for Higgs boson decay to a pair of muons is presented. This result combines searches in four exclusive categories targeting the production of the Higgs boson via gluon fusion, via vector boson fusion, in association with a vector boson, and in association with a top quark-antiquark pair. The analysis is performed using proton-proton collision data at s = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, recorded by the CMS experiment at the CERN LHC. An excess of events over the back- ground expectation is observed in data with a significance of 3.0 standard deviations, where the expectation for the standard model (SM) Higgs boson with mass of 125.38 GeV is 2.5. The combination of this result with that from data recorded at s = 7 and 8 TeV, corresponding to integrated luminosities of 5.1 and 19.7 fb−1, respectively, increases both the expected and observed significances by 1%. The measured signal strength, relative to the SM prediction, is 1.19−0.39+0.40(stat)−0.14+0.15(syst). This result constitutes the first evidence for the decay of the Higgs boson to second generation fermions and is the most precise measurement of the Higgs boson coupling to muons reported to date. [Figure not available: see fulltext.]. © 2021, The Author(s).
dc.description.sponsorshipHorizon 2020 Framework Programme, H2020, (675440, 752730, 765710); Horizon 2020 Framework Programme, H2020
dc.identifier.doi10.1007/JHEP01(2021)148
dc.identifier.issn1029-8479
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85195505801
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/JHEP01(2021)148
dc.identifier.urihttps://hdl.handle.net/20.500.12662/4990
dc.identifier.volume2021
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20250310
dc.subjectHadron-Hadron scattering (experiments)
dc.subjectHiggs physics
dc.subjectLepton production
dc.titleEvidence for Higgs boson decay to a pair of muons
dc.typeArticle

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