dc.contributor.author | Aaltonen, Timo Antero | |
dc.contributor.author | Casal Laraña, Bruno | |
dc.contributor.author | Cuevas Maestro, Francisco Javier | |
dc.contributor.author | Gómez Gramuglio, Gervasio | |
dc.contributor.author | Palencia Cortezón, José Enrique | |
dc.contributor.author | Ruiz Jimeno, Alberto | |
dc.contributor.author | Scodellaro, Luca | |
dc.contributor.author | Vilar Cortabitarte, Rocío | |
dc.contributor.author | Vizán García, Jesús Manuel | |
dc.contributor.other | Universidad de Cantabria | es_ES |
dc.date.accessioned | 2017-04-28T12:04:38Z | |
dc.date.available | 2017-04-28T12:04:38Z | |
dc.date.issued | 2014-05 | |
dc.identifier.issn | 1550-7998 | |
dc.identifier.issn | 1550-2368 | |
dc.identifier.other | FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01 | |
dc.identifier.uri | http://hdl.handle.net/10902/10893 | |
dc.description.abstract | We 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.extent | 9 p. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.rights | © 2014 American Physical Society | * |
dc.source | Phys. Rev. D, Vol. 89, Num. 9, Pag. 091101 (2014) | es_ES |
dc.title | Study of top quark production and decays involving a tau lepton at CDF and limits on a charged Higgs boson contribution | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherVersion | https://doi.org/10.1103/PhysRevD.89.091101 | es_ES |
dc.rights.accessRights | openAccess | es_ES |
dc.identifier.DOI | 10.1103/PhysRevD.89.091101 | |
dc.type.version | publishedVersion | es_ES |