SEARCHING FOR SIGNATURES OF SUPERSYMMETRY AT B-FACTORIES

We analyze the predictions for CP asymmetries in B-0-meson decays within the framework of the supersymmetric standard model (SSM). Tt is pointed out that owing to sizable new contributions to B-d(0)-B-d(0) and K-0-($) over bar K-$ over bar 0 mixings, the experimentally allowed range for the CP-violating phase delta of the Cabibbo-Kobayashi-Maskawa matrix may be different from the one obtained in the standard model (SM), This has important effects on the allowed values of CP asymmetries in Bo-meson decays and on their correlations, We calculate the ratio R of the SSM and the SM contributions to the B-d(0)-B-d(0) mixing parameter x(d) and discuss in detail the ranges of R and delta which are consistent with the experimental values of x(d) and the CP violation parameter epsilon for K-0-($) over bar K-$ over bar 0 mixing. The CP asymmetries are predicted to have values different from the SM predictions in sizable regions of parameter space, We also discuss the SSM predictions for B-s(0)-B-s(0) mixing.