Power suppressed effects in B¯→Xsγ at O(αs)O(αs)

We compute the O(αs)O(αs) corrections to the Wilson coefficients of the dimension five operators emerging from the Operator Product Expansion of inclusive radiative B   decays. We discuss the impact of the resulting O(αsΛQCD2/mb2) corrections on the extraction of mbmb and μπ2 from the moments of the photon spectrum.