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From a combined analysis of nucleon-nucleon and hyperon-nucleon scattering with a one-boson-exchange potential model the A N and X N results are presented. The model consists of local potentials due to exchanges of members of the pseudoscalar and vector-meson nonets and the scalar meson E taken as a unitary singlet. The multichannel Schrodinger equation is solved in configuration space with phenomenological hard-core potentials at short distances. The coupling constants are calculated via SU(3) with the coupling constants of the N N analysis as input. Charge-symmetry breaking between the Ap and An channels is included. A leastsquares fit to the low-energy Ap, X+p, and X-p data yields a very satisfactory result. Predictions up to the pion production threshold are given, and, whenever possible, compared to the experimental data.

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The NN and YN results are presented from a one-boson-exchange-potential model. It consists of local potentials due to exchanges of members of the pseudoscalar, vector, and scalar-meson nonets. SU(3) relations are assumed for the axial-vector couplings of the pseudoscalar mesons, for the electric and magnetic couplings of the vector mesons, for the direct couplings of the scalar mesons, and for the hard-core radii. In the fit to NN the nonstrange-meson-nucleon couplings are determined. The simultaneous YN analysis determines the F/D ratios and the SU(3) parameters of the scalar-meson nonet. The description of the NN data is good (,y2/data = 2.17), and also of the Ap, Z+p, and 2 7 data up to the pion production threshold Very close to the ZN threshold we find a AN resonance, which is dominantly in the 3~, wave. The Ap cross section is maximal just below the B+n threshold at E = 2128.918 MeV, in agreement with the experimental results of Ap final state interactions. The poles belonging to the Ap resonance are located on the second Riemann sheet at E = 2131.771i 2.39 MeV.

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