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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.accessioned2018-11-29T02:46:48Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn1029-8479pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/185255pt_BR
dc.description.abstractA search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or no energy in associated calorimeter deposits, and no associated hits in the muon detectors. This search uses data collected with the CMS detector in 2015 and 2016 from protonproton collisions at a center-of-mass energy of 13TeV at the LHC, corresponding to an integrated luminosity of 38.4 fb􀀀1. The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking model. The data are consistent with the background-only hypothesis. Limits are set on the product of the cross section for direct production of charginos and their branching fraction to a neutralino and a pion, as a function of the chargino mass and lifetime. At 95% con dence level, charginos with masses below 715 (695) GeV are excluded for a lifetime of 3 (7) ns, as are charginos with lifetimes from 0.5 to 60 ns for a mass of 505 GeV. These are the most stringent limits using a disappearing track signature on this signal model for chargino lifetimes above 0.7 ns.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe journal of high energy physics. Trieste. No. 8 (Aug. 2018), 016, 39 p.pt_BR
dc.rightsOpen Accessen
dc.subjectBeyond standard modelen
dc.subjectAceleradores de partículaspt_BR
dc.subjectSupersimetriaspt_BR
dc.subjectHadron-Hadron scattering (experiments)en
dc.subjectColisões proton-protonpt_BR
dc.titleSearch for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at √s =13 TeVpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001075956pt_BR
dc.type.originEstrangeiropt_BR


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