Nnlo Analysis of Semileptonic Rare B Decays

We update the standard model predictions for the branching ratios of the decays B → (K,K∗,Xs) l l, with l = e, μ. Using the measurements of B(B → Xsγ) and B(B → Kll) as well as the upper limits on B(B → (K∗,Xs)l l), we work out model independent bounds on the relevant Wilson coefficients. We show the impact of such bounds on the parameter space of the MSSM with minimal flavour violation and of supersymmetric models with additional sources of flavour changing.