QCD Corrections for the $K^0-{\bar{K}}^0$ and $B^0-{\bar{B}}^0$ System

Amitava Datta, E. A. Paschos, J. -M. Schwarz +1

The QCD corrections for the box diagrams are revisited for the case of a heavy top quark with $\mt = 174 \GeV$. We resolve first a longstanding discrepancy between two methods of c…