Search for time-dependent B(s)(0)-(B(s)(0))over-bar oscillations using a vertex charge dipole technique

We report a search for B(s)(0)-<(B(s)(o))over bar> oscillations using a sample of 400 000 hadronic Z(0) decays collected by the SLD experiment. The analysis takes advantage of the electron beam polarization as well as information from the hemisphere opposite that of the reconstructed B decay to tag the B production flavor. The excellent resolution provided by the pixel CCD vertex detector is exploited to cleanly reconstruct both B and cascade D decay vertices, and tag the B decay flavor from the charge difference between them. We exclude the following values of the B(s)(0)-<(B(s)(o))over bar> oscillation frequency: Deltam(s)<4.9 ps(-1) and 7.9