VERTICAL-BAR-DELTA-F-VERTICAL-BAR=1 NONLEPTONIC EFFECTIVE HAMILTONIANIN A SIMPLER SCHEME

We consider \Delta F\ = 1 (F = S,C or B) non-leptonic effective Hamilt onian in a renormalization scheme which allows us to consistently use fully anticommuting gamma(5) at any number of loops, but at the leadin g order in the Fermi coupling G(F). We calculate two-loop anomalous di mensions and one-loop matching conditions for the effective operators in this scheme. Finally, we transform our results to one of the previo usly used renormalization schemes, and find agreement with the origina l calculations. (C) 1998 Published by Elsevier Science B.V.