The K+p interaction from 864 to 1585 MeV/c; angular distributions for inelastic scattering

Abstract We present angular distributions for production and decay of the quasi- two-body final states KΔ(1236) and K ∗ (891)p produced in K + p interactions at 864, 969, 1207, 1367 and 1585 MeV/ c . The analysis of these distributionsleads to the following conclusions: (a) KΔ(1236) production near threshold is largely via P-waves and is, except for coupling constants, fairly well approximated at all momenta by the predictions of the Stodolsky-Sakurai ϱ-exchange model; (b) K ∗ (891)p production appears dominated by vector exchange down to threshold, and no evidence of significant relative increase in pseudoscalar exchange contribution at low energy is seen; (c) study of the partial-wave structure of KΔ(1236) production shows no evidence of resonant behavior at the total cross-section peak near 1200 MeV/ c .