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dc.contributor.authorSirunyan, A. M.pt_BR
dc.contributor.authorSilveira, Gustavo Gil dapt_BR
dc.contributor.authorCMS Collaborationpt_BR
dc.date.accessioned2018-09-18T02:30:12Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn1029-8479pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/182117pt_BR
dc.description.abstractA search is presented for new high-mass resonances decaying into electron or muon pairs. The search uses proton-proton collision data at a centre-of-mass energy of 13TeV collected by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 36 fb􀀀1. Observations are in agreement with standard model expectations. Upper limits on the product of a new resonance production cross section and branching fraction to dileptons are calculated in a model-independent manner. This permits the interpretation of the limits in models predicting a narrow dielectron or dimuon resonance. A scan of di erent intrinsic width hypotheses is performed. Limits are set on the masses of various hypothetical particles. For the Z0 SSM (Z0 ) particle, which arises in the sequential standard model (superstring-inspired model), a lower mass limit of 4.50 (3.90)TeV is set at 95% con dence level. The lightest Kaluza-Klein graviton arising in the Randall-Sundrum model of extra dimensions, with coupling parameters k=MPl of 0.01, 0.05, and 0.10, is excluded at 95% con dence level below 2.10, 3.65, and 4.25TeV, respectively. In a simpli ed model of dark matter production via a vector or axial vector mediator, limits at 95% con dence level are obtained on the masses of the dark matter particle and its mediator.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe journal of high energy physics. Trieste. No. 6 (June 2018), 120, 43 p.pt_BR
dc.rightsOpen Accessen
dc.subjectAceleradores de partículaspt_BR
dc.subjectBeyond Standard Modelen
dc.subjectHadron-Hadron scattering (experiments)en
dc.subjectColisões proton-protonpt_BR
dc.subjectProdução de leptonspt_BR
dc.subjectLepton productionen
dc.subjectParticle and resonance productionen
dc.titleSearch for high-mass resonances in dilepton final states in proton-proton collisions at √s = 13 TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001073288pt_BR
dc.type.originEstrangeiropt_BR


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