%0 Journal Article
%T Results for Quenched $B_K$ from JLQCD
%A JLQCD Collaboration
%A S. Aoki
%A M. Fukugita
%A S. Hashimoto
%A N. Ishizuka
%A Y. Iwasaki
%A K. Kanaya
%A Y. Kuramashi
%A M. Okawa
%A A. Ukawa
%A T. Yoshi¨¦
%J Physics
%D 1997
%I arXiv
%R 10.1016/S0920-5632(97)00746-9
%X A report is presented on our continued effort to elucidate the continuum limit of $B_K$ using the quenched Kogut-Susskind quark action. By adding to our previous simulations one more point at $\beta = 6.65$ employing a $56^3\times 96$ lattice, we now confirm the expected $O(a^2)$ behavior of $B_K$ with the Kogut-Susskind action. A simple continuum extrapolation quadratic in $a$ leads to $B_K$(NDR, 2 GeV) = 0.598(5). As our final value of $B_K$ in the continuum we present $B_K$(NDR, 2 GeV)=0.628(42), as obtained by a fit including an $\alpha_{\bar{MS}}(1/a)^2$ term arising from the lattice-continuum matching with the one-loop renormalization.
%U http://arxiv.org/abs/hep-lat/9709136v2