|Delta F| = 1 Nonleptonic Effective Hamiltonian in a Simpler Scheme

Abstract

We consider |ΔF| = 1 (F = S,C or B) nonleptonic effective hamiltonian in a renormalization scheme which allows to consistently use fully anticommuting gamma_5 at any number of loops, but at the leading order in the Fermi coupling G_F. 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.

21 pages, 7 figures, uses epsf.sty

References in corpus (1)

• Beta functions and anomalous dimensions up to three loops

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