Abstract:
We present the results of a search for pair production of scalar
top quarks (t-tilde1) in an R-parity violating supersymmetry scenario in
106 pb-1 of pp-bar collisions at sqrt[s]=1.8 TeV collected by the Collider
Detector at Fermilab. In this mode each t-tilde1 decays into a tau lepton
and a b quark. We search for events with two tau 's, one decaying leptonically
(e or ยต) and one decaying hadronically, and two jets. No candidate events
pass our final selection criteria. We set a 95\% confidence level lower limit
on the t-tilde1 mass at 122 GeV/c2 for Br(t-tilde1--> tau b)=1.