Scheme Independence Of The Effective Hamiltonian For B-]S-Gamma And B-]Sg Decays

We present a calculation of the effective weak Hamiltonian which governs b --> sgamma and b --> sg transitions in two different renormalization schemes (NDR and HV). In the leading logarithmic approximation, we show that the coefficients of the effective Hamiltonian are scheme independent only when one takes correctly into account the sch...更多