K -Meson Dispersion Relations. II. Applications

The present experimental data on K⁺ and K^- scattering on protons are used in the dispersion relations of the previous paper. The Λ and Σ parities are assumed to be both positive and the K⁺-p potential is taken to be repulsive. The dispersion relations then indicate that an attractive K^--p potential implies pseudoscalar K mesons, and a repulsive K^--p potential implies scalar K mesons. In both cases the coupling constants are of the order of unity. If data on K-n scattering were available it would not be necessary to assume the relative parity for Λ and Σ hyperons, but this could also be determined from the dispersion relations.