We present a search for the lightest supersymmetric partner of
the top quark in proton-antiproton collisions at a center-of-mass energy
s**(1/2) ñ.96 TeV. This search was conducted within the framework of the
R-parity conserving minimal supersymmetric extensions of the standard
model, assuming the stop decays dominantly to a lepton, a sneutrino,
and a bottom quark. We searched for events with two oppositely-charged
leptons, at least one jet, and missing transverse energy in a data
sample corresponding to an integrated luminosity of 1 fb-1 collected
by the CDF experiment. No significant evidence of a stop quark signal
was found. Exclusion limits at 95% confidence level in the stop quark
versus sneutrino mass plane are set. Stop quark masses up to 180 GeV/c2
are excluded for sneutrino masses around 45 GeV/c2, and sneutrino masses
up to 116 GeV/c2 are excluded for stop quark masses around 150 GeV/c2.
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Updated: Tuesday, 2010 November 02 11:52:56 CDT automatically from input from Carol Picciolo