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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.accessioned2018-11-07T02:46:49Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn1029-8479pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/184418pt_BR
dc.description.abstractA search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35:9 fb􀀀1. No signi cant excess over the expected standard model background is observed. Upper limits at 95% con dence level are presented for the product of the production cross section and branching fraction in the context of two benchmark simpli ed models. For the Z0-two-Higgs-doublet model (where Z0 is a new massive boson mediator) with an intermediate heavy pseudoscalar particle of mass mA = 300 GeV and mDM = 100 GeV, the Z0 masses from 550 GeV to 1265 GeV are excluded. For a baryonic Z0 model, with mDM = 1 GeV, Z0 masses up to 615 GeV are excluded. Results are also presented for the spin-independent cross section for the dark matter-nucleon interaction as a function of the mass of the dark matter particle. This is the rst search for dark matter particles produced in association with a Higgs boson decaying to two leptons.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe journal of high energy physics. Trieste. No. 9 (Sept. 2018), 046, 48 p.pt_BR
dc.rightsOpen Accessen
dc.subjectAceleradores de partículaspt_BR
dc.subjectDark matteren
dc.subjectColisões proton-protonpt_BR
dc.subjectHadron-Hadron scattering (experiments)en
dc.subjectMatéria escurapt_BR
dc.subjectBosons de higgspt_BR
dc.titleSearch for dark matter produced in association with a Higgs boson decaying to γγ or τ+τ- at √s = 13TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001078824pt_BR
dc.type.originEstrangeiropt_BR


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