The Kaon B-parameter with the Wilson Quark Action using Chiral Ward Identities
arXiv:hep-lat/9711014 · doi:10.1016/S0920-5632(97)00468-4
Abstract
We present a detailed description of the method and results of our calculation of the kaon B parameter using the Wilson quark action in quenched QCD at $β=5.9-6.5$. The mixing problem of the $Îs=2$ four-quark operators is solved non-perturbatively with full use of chiral Ward identities. We find $B_K(NDR, 2 GeV)=0.562(64)$ in the continuum limit, which agrees with the value obtained with the Kogut-Susskind quark action.
10 pages, latex source-file, 10 figures as epsf-file, uses espcrc2.sty. Talk given at International Workshop on Lattice QCD on Parallel Computers, 10-15 Mar 1997, Tsukuba, Japan