Redei behaviour and long-versus short-distance contributions to the K0-anti K0 parameters

A class of models in which ''new physics'' manifests itself by a change in the Minkowski metric may account for the energy (Redei) dependence of the K0-anti K0 parameters. In turn, such Redei behaviour gives insight into the relative importance of long-versus short-distance contributions to pertinent matrix elements. Our results call for an independent experimental check of the energy dependence considered. (orig.)