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dc.contributor.authorAaltonen, Timo Antero
dc.contributor.authorCasal Laraña, Bruno
dc.contributor.authorCuevas Maestro, Francisco Javier
dc.contributor.authorGómez Gramuglio, Gervasio 
dc.contributor.authorPalencia Cortezón, José Enrique
dc.contributor.authorRuiz Jimeno, Alberto 
dc.contributor.authorScodellaro, Luca 
dc.contributor.authorVilar Cortabitarte, Rocío 
dc.contributor.authorVizán García, Jesús Manuel 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2017-04-28T12:04:38Z
dc.date.available2017-04-28T12:04:38Z
dc.date.issued2014-05
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.otherFPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01
dc.identifier.urihttp://hdl.handle.net/10902/10893
dc.description.abstractWe present an analysis of top-antitop quark production and decay into a tau lepton, tau neutrino, and bottom quark using data from 9??fb-1 of integrated luminosity at the Collider Detector at Fermilab. Dilepton events, where one lepton is an energetic electron or muon and the other a hadronically decaying tau lepton, originating from proton-antiproton collisions at vs=1.96??TeV, are used. A top-antitop quark production cross section of 8.1±2.1??pb is measured, assuming standard-model top quark decays. By separately identifying for the first time the single-tau and the ditau components, we measure the branching fraction of the top quark into the tau lepton, tau neutrino, and bottom quark to be (9.6±2.8)%. The branching fraction of top quark decays into a charged Higgs boson and a bottom quark, which would imply violation of lepton universality, is limited to be less than 5.9% at a 95% confidence level [for B(H-?t¯?)=1].es_ES
dc.format.extent9 p.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rights© 2014 American Physical Society*
dc.sourcePhys. Rev. D, Vol. 89, Num. 9, Pag. 091101 (2014)es_ES
dc.titleStudy of top quark production and decays involving a tau lepton at CDF and limits on a charged Higgs boson contributiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1103/PhysRevD.89.091101es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1103/PhysRevD.89.091101
dc.type.versionpublishedVersiones_ES


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