Long distance contribution to B−→K−K−π+ – a searching ground mode for new physics

The decay B−→K−K−π+ has been suggested as a test for minimal supersymmetric standard model and for supersymmetric models with R-parity violating couplings, in view of its extreme smallness in the standard model. We calculate two long distance contributions to this decay, that associated with DD and Dπ intermediate states and that induced by virtual D, π mesons. The branching ratio due to these contributions is 6×10−12, which is somewhat smaller than the standard model short distance result, leaving this decay free for the search of new physics.