Anomalous Regeneration ofK10Mesons fromK20Mesons

Abstract

A beam of 1.0-BeV/c ${K_2}^0$ mesons passing through liquid hydrogen in a bubble chamber was seen to generate ${K_1}^0$ mesons with the momentum and direction of the original beam. The intensity of ${K_1}^0$ production was far greater than that anticipated from conventional mechanisms, and the suggestion is made that the ${K_1}^0$ mesons are produced by coherent regeneration resulting from a new weak long-range interaction between protons and $K$ mesons.