We present a search for chargino-neutralino associated production using like electric charge dilepton events collected by the CDF II detector at the Fermilab Tevatron in proton-antiproton collisions at root s = 1.96 TeV. One lepton is identified as the hadronic decay of a tau lepton, while the other is an electron or muon. In data corresponding to 6.0 fb(-1) of integrated luminosity, we obtain good agreement with standard model predictions and set limits on the chargino-neutralino production cross section for simplified gravity-and gauge-mediated models. As an example, assuming that the chargino and neutralino decays to taus dominate, in the simplified gauge-mediated model we exclude cross sections greater than 300 fb at 95% credibility level for chargino and neutralino masses of 225 GeV/c(2). This analysis is the first to extend the LHC searches for electroweak supersymmetric production of gauginos to high tan beta and slepton next-to-lightest supersymmetric particle scenarios.
Titolo: | Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF | |
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Data di pubblicazione: | 2013 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevLett.110.201802 | |
Handle: | http://hdl.handle.net/11384/39029 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |