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We consider the gluino-mediated SUSY contributions to B0 - B0 bar mixing, B-> J/psi K_S and B -> X_d gamma in the mass insertion approximation. We findthe LL mixing parameter can be as large as |delta_{13}^d_{LL}| < 2*10^-1, butthe LR mixing is strongly constrained by the B -> X_d gamma branching ratio andwe find |delta_{13}^d_{LR}| < 10^-2. The implications for the direct CPasymmetry in B -> X_d gamma and the dilepton charge asymmetry (A_{ll}) are alsodiscussed, where substantial deviations from the standard model predictions arepossible.Comment: 14 pages, 4 figure

$B^0 -\overline{B^0}$ mixing, $B\rightarrow J/\psi K_s$ and $B\rightarrow X_d \gamma$ in general MSSM