K^0--\bar{K}^0 mixing in full lattice QCD

Abstract

There are at least two methods to calculate $B_K$ with staggered fermions: one is the two spin trace formalism and the other is the one spin trace formalism. We have performed numerical simulations on a $16^3\times 40$ lattice in full QCD with $\beta =5.7$ and a dynamical quark mass 0.01 in lattice units. We try various sources to select only the pseudo-Goldstone bosons and compare the various results.

Comments: Contribution to Lattice 94, 3 pages, Compressed, uuenocded postscript file of the complete paper