QCD challenges in radiative B decays

Abstract

Radiative decays of the B meson are known to provide important constraints on the MSSM and many other realistic new physics models in the sub-TeV range. The inclusive branching ratio BR(B -> Xs gamma) being the key observable is currently measured to about 7% accuracy. Reaching a better precision on the theory side is a challenge both for the perturbative QCD calculations and for analyses of non-perturbative hadronic effects. The current situation is briefly summarized here.Comment: Overview talk presented at the International Workshop on QCD, Theory and Experiment "QCD@Work'', Martina Franca, Italy, June 20th-23rd, 201