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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.accessioned2022-02-12T04:51:40Zpt_BR
dc.date.issued2021pt_BR
dc.identifier.issn1029-8479pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/235078pt_BR
dc.description.abstractA search is presented for physics beyond the standard model (SM) using electron or muon pairs with high invariant mass. A data set of proton-proton collisions collected by the CMS experiment at the LHC at s√ = 13 TeV from 2016 to 2018 corresponding to a total integrated luminosity of up to 140 fb−1 is analyzed. No significant deviation is observed with respect to the SM background expectations. Upper limits are presented on the ratio of the product of the production cross section and the branching fraction to dileptons of a new narrow resonance to that of the Z boson. These provide the most stringent lower limits to date on the masses for various spin-1 particles, spin-2 gravitons in the Randall-Sundrum model, as well as spin-1 mediators between the SM and dark matter particles. Lower limits on the ultraviolet cutoff parameter are set both for four-fermion contact interactions and for the Arkani-Hamed, Dimopoulos, and Dvali model with large extra dimensions. Lepton flavor universality is tested at the TeV scale for the first time by comparing the dimuon and dielectron mass spectra. No significant deviation from the SM expectation of unity is observed.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe journal of high energy physics. Trieste. No. 7 (July 2021), 208, 62 p.pt_BR
dc.rightsOpen Accessen
dc.subjectBeyond Standard Modelen
dc.subjectAceleradores de partículaspt_BR
dc.subjectHadron-Hadron scattering (experiments)en
dc.subjectColisões proton-protonpt_BR
dc.subjectLepton productionen
dc.subjectProdução de leptonspt_BR
dc.subjectParticle and resonance productionen
dc.titleSearch for resonant and nonresonant new phenomena in high-mass dilepton final states at s√ = 13 TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001130621pt_BR
dc.type.originEstrangeiropt_BR


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