Resonance Model for Photoproduction ofKMesons from Nucleons. II

Abstract

Result of numerical calculation based on a formalism of a previous paper is given for the photoproduction of $K^{+}$ mesons and $\Lambda$ hyperons on protons. Partial widths of the second $\pi N$ resonance and $K\pi$ resonance are adjusted as free parameters. Differential cross section and polarization of $\Lambda$ hyperon in a reasonable agreement with experiment are obtained in the case when the spin of $K\pi$ resonance is taken to be 1. The ratio of the width for the radiative decay of the $K^{*}\to K+\gamma$ relative to the decay mode $K^{*}\to K+\pi$ is estimated to be 2.5 × ${10}^{-2\mathrm{}}$.