NONLOCAL SUPERPOSITIONS OF K0, K0 AND CP VIOLATION

We assume that K S, K L are nonlocal superpositions of K0 and {Mathematical expression}, and briefly discuss a possible interpretation of this assumption. It is found that the form of such a nonlocality is unique, in the first order of its space-time expansion, up to a parameter. Using this form, we find expressions for the measurable quantities in the K S, K L decays. In the simplest nontrivial case, we find {Mathematical expression} and <K S/KL>=0. Consistency with the experimental data, in this case, requires an apparent CPT violation (which may emerge as well from the nonlocal superposition). © 1969 Società Italiana di Fisica.