K¯0−K0matrix elements and constraints on theWRmass

We reanalyze the constraints that the ($K_L-K_S$) mass difference imposes on the mass of a possible ($V+A$)-coupled gauged boson. We study, in particular, the dependence which the ($K^0-{\overline{K}}^0$) matrix elements have on a variety of quark-model assumptions. Our conclusions are in general agreement with those reached earlier by Beall, Bander, and Soni.