Testing Quantum Mechanics in the Neutral Kaon System

Abstract

The neutral kaon system is a sensitive probe of quantum mechanics. We revive a parametrization of non-quantum-mechanical effects that is motivated by considerations of the nature of space-time foam, and show how it can be constrained by new measurements of $K_L\to 2\pi$ and $K_{L,S}$ semileptonic decays at LEAR or a $\varphi$ factory.

Comments: 10 pages