ar X iv : h ep - l at / 9 60 81 08 v 1 2 1 A ug 1 99 6 1 Non - perturbative renormalization in kaon decays
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چکیده
We discuss the application of the MPSTV non-perturbative method [1] to the operators relevant to kaon decays. This enables us to reappraise the long-standing question of the ∆I = 1/2 rule, which involves power-divergent subtractions that cannot be evaluated in perturbation theory. We also study the mixing with dimension-six operators and discuss its implications to the chiral behaviour of the BK parameter.
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تاریخ انتشار 1996