Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2006-02-22
PoS HEP2005:320,2006
Physics
High Energy Physics
High Energy Physics - Experiment
For the D0 Collaboration. Presented at HEP2005 International Europhysics Conference on High Energy Physics, July 21st - 27th 2
Scientific paper
A search for charged massive (quasi-) stable particles with the D0 detector at the Tevatron collider based on 390 pb^{-1} of data is presented. The search is performed in the frameworks of gauge-mediated supersymmetry breaking and the minimal supersymmetric extentension of the standard model. The hypothetical particles are assumed to be pair-produced in p-anti-p collisions giving a signature of two reconstructed muon-like objects with high invariant mass and time-of-flights indicative of heavy particles. Since no excess over background is observed, cross-section limits for the pair-production of stable staus and charginos are set. Mass limits of 140 GeV for a higgsino-like chargino and 174 GeV for a gaugino-like chargino are set.
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