||ΔF|| = 1 non-leptonic effective Hamiltonian in a simpler scheme Original Research Article

We consider ||ΔF|| = 1 (F = S, C or B) non-leptonic effective Hamiltonian in a renormalization scheme which allows us to consistently use fully anticommuting γ5 at any number of loops, but at the leading order in the Fermi coupling GF. We calculate two-loop anomalous dimensions and one-loop matching conditions for the effective operators in this scheme. Finally, we transform our results to one of the previously used renormalization schemes, and find agreement with the original calculations.