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Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF

CollaborationWith : Clark, Allan Geoffrey / Lister, Alison / Wu, Xin
Published in Physical Review Letters. 2013, vol. 110, no. 20, p. 201802
Abstract 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 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/c2. This analysis is the first to extend the LHC searches for electroweak supersymmetric production of gauginos to high tanβ and slepton next-to-lightest supersymmetric particle scenarios.
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CDF COLLABORATION. Search for Supersymmetry with Like-Sign Lepton-Tau Events at CDF. In: Physical Review Letters, 2013, vol. 110, n° 20, p. 201802. https://archive-ouverte.unige.ch/unige:38845

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Deposited on : 2014-07-22

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