CP violation in rare semileptonic B decays and supersymmetry

We study the effect of new flavor changing SUSY phases arising in the squark mass matrix in semileptonic decays B→Xsl+l-, and B→K(*)l+l- (l=e,μ). SUSY effects are parametrized using the mass insertion approximation formalism. Constraints on SUSY contributions coming from other processes (e.g. b→sγ, B→K*l+l-) are taken into account. Chargino and gluino contributions to photon and Z-mediated decays are included and nonperturbative corrections are considered. We study the correlation between the CP (and forward-backward) asymmetries and the expected value of the inclusive branching ratio. Several possible scenarios are distinguished and discussed according to the mass insertion that is considered