Miscellanies of $ K^0 - \bar{K}^0 $ mixing and $ B_K $
arXiv:hep-lat/9602012 · doi:10.1016/0920-5632(96)00103-X
Abstract
We have computed $ B_K $, using two different methods with staggered fermions on a $ 16^3 \times 40 $ lattice at $ β= 5.7 $ with two dynamical flavors of a mass 0.01. % Using an improved wall source method, we have studied a series of non-degenerate quark antiquark pairs and observed no effect on $ B_K $, although effects were seen on the individual terms making up $ B_K $.
4 pages (latex, including 8 postscript figures, uuencoded gzip-compressed tar files), Nucl. Phys. B (Proc. Suppl.) Lattice 95