Long-Range Interaction inK¯-Nucleon andK-Nucleon Elastic Amplitudes

Abstract

A method of calculating, for the $K$-nucleon interaction, the long-range force arising from the exchange of a pion pair and of a possible three-pion resonant state is formulated. It is shown that the long-range force can be related with the electromagnetic structure parameters of the nucleon and $K$ meson. Finally, relations between $K$-nucleon and $\overline{K}$-nucleon elastic amplitudes are discussed.