b→sγ in the left-right supersymmetric model -: art. no. 114006

The rare decay b-->sgamma is studied in the left-right supersymmetric model. We give explicit expressions for all the amplitudes associated with the supersymmetric contributions coming from gluinos, charginos, and neutralinos in the model to one-loop level. The branching ratio is enhanced significantly compared to the standard model and minimal supersymmetric standard model values by contributions from the right-handed gaugino and squark sector. We give numerical results coming from the leading order contributions. If the only source of flavor violation comes from the Cabibbo-Kobayashi-Maskawa (CKM) matrix, we constrain the scalar fermion-gaugino sector. If intergenerational mixings are allowed in the squark mass matrix, we constrain such supersymmetric sources of flavor violation. The decay b-->sgamma sets constraints on the parameters of the model and provides distinguishing signs from other supersymmetric scenarios.