We report on a search for the supersymmetric partner of the
top quark (scalar top) decaying into a charm quark and a neutralino in p
anti-p collisions at sqrt(s)=1.96 TeV. The data sample, collected by the
CDFII detector at the Fermilab Tevatron, corresponds to an integrated
luminosity of 2.6 fb-1. Candidate events are selected by requiring
two or more jets and a large imbalance in the transverse momentum. To
enhance the analysis sensitivity, at least one of the jets is required
to be identified as originating from a charm quark using an algorithm
specifically designed for this analysis. The selected events are in good
agreement with standard model predictions. In the case of large mass
splitting between the scalar top quark and the neutralino we exclude a
scalar top quark mass below 180 GeV at 95% confidence level.
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Updated: Monday, 2013 February 11 15:46:08 CST automatically from input from Barbara Hehner