Sigma Hyperon Production in 2- and 3-Body Final States

Abstract

We find the final states ${\Sigma }^{+}{K}^{+}$ and ${\Sigma }^{+}{K}^{*+}$ to be produced peripherally with evidence, in both cases, for a small backward peak. The forward differential cross sections for both reactions are compared with the predictions of a Regge-pole model. For ${\Sigma }^{+}{K}^{*+}$ we find that the angular correlations in the resonance decay are predicted quite well by an absorptive peripheral model although the model is unable to account for the production angular distribution.