Calculation of CP Violation in Non-leptonic Kaon Decay on the Lattice

We give a progress report of our lattice calculation of direct and indirect CP violation in kaon decays, parametrized as ′/ and BK , which require non-perturbative calculation of the matrix elements of the Standard Model effective Hamiltonian. Calculation of CP Violation in Non-leptonic Kaon Decay on the Lattice J. Noaki for RBC Collaboration