## CP-PACS), hep- lat/0007014

- A Ali Khan
- RBC), hep- lat/0007038, and references therein

We present a lattice calculation of the K → π and K → 0 matrix elements of the ∆S = 1 effective weak Hamiltonian which can be used to determine ǫ′/ǫ and the ∆I = 1/2 rule for K decays in the Standard Model. The matrix elements for K → ππ decays are related to K → π and K → 0 using lowest order chiral perturbation theory. We also present results for the kaon… (More)