1 99 8 Lattice approach to the ∆ I = 1 / 2 rule 1
نویسنده
چکیده
We discuss a number of old and new methods for computing K → ππ amplitudes on the lattice. They all involve a non-perturbative determination of matching coefficients. We show how problems related to operator mixing can be greatly reduced by using point-split hadronic currents.
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