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 (χ²data=2.17), and also of the Λp, Σ⁺p, and Σ^-p data up to the pion production threshold. Very close to the ΣN threshold we find a ΛN resonance, which is dominantly in the ³D₁ wave. The Λp cross section is maximal just below the Σ⁺n threshold at $E=2128.918$ MeV, in agreement with the experimental results of Λp final state interactions. The poles belonging to the Λp resonance are located on the second Riemann sheet at E=2131.77±i2.39 MeV.
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Nagels et al. (1979) studied this question.
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