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B_K with the Wilson Quark Action: A Non-Perturbative Resolution of Operator Mixing using Chiral Ward Identities

arXiv:hep-lat/9608150 · doi:10.1016/S0920-5632(96)00657-3

Abstract

We propose a non-perturbative method to determine the mixing coefficients of $Δs=2$ four-quark operators for the Wilson quark action using chiral Ward identities. The method is applied to calculate B_K in quenched QCD.

3 pages including 3 figures, Talk presented at LATTICE96(phenomenology) by Y. Kuramashi