[en] The production properties of Ksub(s)⁰, anti Λ and Λ in K⁺ p interactions at 32 GeV/c are investigated using the final statistics of the experiment. We present total and semi-inclusive cross sections and average multiplicities. Estimates are given of the diffractive dissociation contributions to total and differential cross sections. The x-, psub(T)-, and transverse mass dependence of inclusive and semi-inclusive distributions is discussed as well as properties of ''prompt'' Ksub(s)⁰'s. The ratio of ''prompt'' Ksup(*+)₈₉₀ (Ksup(*0)₈₉₀) to ''prompt'' K⁰ cross sections is measured to be 1.03+-0.12 (0.98+-0.17). From a comparison of anti Λ production in Ksup(+-) p interactions at 32 GeV/c, we estimate a strange sea-quark suppression of 0.26+-0.02. The double differential cross sections of Ksub(s)⁰'s is studied as a function of Feynman-x and psub(T)², and a Triple-Regge fit performed. The data are compared in detail to versions of the LUnd-model for low-Psub(T) hadronic collisions. (orig.)

[en] We present final results on inclusive production of Ksup(*+)(890), Ksup(*+)(1,430) and anti Ksup(*-)(890) in anti K⁺p interactions at 32 GeV/c, based on a statistics of proportional27 events/μb. Total cross sections, psub(T)- and z-dependence of inclusive distributions are compared with experiments at other energies and with the Lund fragmentation model. Spin density matrix elements of the Ksup(*+)(890) are also discussed. The results suggest that ''recombination'' of both initial state valence quarks anti s and u of the K⁺ into Ksup(*+)(890), responsible in the Lund model for proportional45% of the Ksup(*+)(890) cross section, is strongly suppressed. (orig.)

[en] We present results on the inclusive polarization of ß anti hyperons produced in K⁺p interactions at 32 and 70 GeV/c. A large positive ß anti polarization is observed in the kaon fragmentation region. The polarization is energy independent, increases strongly with increasing chi, but shows essentially no rhosub(T)-dependence. (orig.)