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Search for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at s=13TeV

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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorMatveev, V.
dc.contributor.authorBychkova, O.
dc.contributor.authorChistov, R.
dc.contributor.authorDanilov, M.
dc.contributor.authorPolikarpov, S.
dc.contributor.authorTarkovskii, E.
dc.contributor.authorМатвеев, Виктор Анатольевич
dc.contributor.authorЧистов, Руслан Николаевич
dc.contributor.authorДанилов, Михаил Владимирович
dc.contributor.authorПоликарпов, Сергей Михайлович
dc.date.accessioned2024-11-21T10:58:55Z
dc.date.available2024-11-21T10:58:55Z
dc.date.issued2019
dc.description.abstract© 2019 The Author(s)A search for decays of the Higgs and Z boson to pairs of J/ψ or Y(nS) (n = 1, 2, 3) mesons, with their subsequent decay to μ+μ− pairs, is presented. The analysis uses data from proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2017 and corresponding to an integrated luminosity of 37.5fb−1. While an observation of such a decay with this sample would indicate the presence of physics beyond the standard model, no significant excess is observed. Upper limits at 95% confidence level are placed on the branching fractions of these decays. In the J/ψ pair channel, the limits are 1.8×10−3 and 2.2×10−6 for the Higgs and Z boson, respectively, while in the combined Y(nS) pair channel, the limits are 1.4×10−3 and 1.5×10−6, respectively, when the mesons from the Higgs and Z boson decay are assumed to be unpolarized. When fully longitudinal and transverse polarizations are considered the limits reduce by about 22–29% and increase by about 10–13%, respectively.
dc.identifier.citationSearch for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at s=13TeV / Sirunyan, A.M. [et al.] // Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - 2019. - 797. - 10.1016/j.physletb.2019.134811
dc.identifier.doi10.1016/j.physletb.2019.134811
dc.identifier.urihttps://www.doi.org/10.1016/j.physletb.2019.134811
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85070317489&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000488071200020
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18529
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.titleSearch for Higgs and Z boson decays to J/ψ or Y pairs in the four-muon final state in proton-proton collisions at s=13TeV
dc.typeArticle
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oaire.citation.volume797
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