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- W2055294654 endingPage "1645" @default.
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- W2055294654 abstract "The $mathrm{NN}$ and $mathrm{YN}$ 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 $mathrm{NN}$ the nonstrange-meson-nucleon couplings are determined. The simultaneous $mathrm{YN}$ analysis determines the $frac{F}{D}$ ratios and the SU(3) parameters of the scalar-meson nonet. The description of the $mathrm{NN}$ data is good ($frac{{ensuremath{chi}}^{2}}{mathrm{data}}=2.17$), and also of the $ensuremath{Lambda}p$, ${ensuremath{Sigma}}^{+}p$, and ${ensuremath{Sigma}}^{ensuremath{-}}p$ data up to the pion production threshold. Very close to the $ensuremath{Sigma}N$ threshold we find a $ensuremath{Lambda}N$ resonance, which is dominantly in the $^{3}D_{1}$ wave. The $ensuremath{Lambda}p$ cross section is maximal just below the ${ensuremath{Sigma}}^{+}n$ threshold at $E=2128.918$ MeV, in agreement with the experimental results of $ensuremath{Lambda}p$ final state interactions. The poles belonging to the $ensuremath{Lambda}p$ resonance are located on the second Riemann sheet at $E=2131.77ifmmodepmelsetextpmfi{}i2.39$ MeV." @default.
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- W2055294654 date "1979-10-01" @default.
- W2055294654 modified "2023-10-18" @default.
- W2055294654 title "Baryon-baryon scattering in a one-boson-exchange-potential approach. III. A nucleon-nucleon and hyperon-nucleon analysis including contributions of a nonet of scalar mesons" @default.
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- W2055294654 doi "https://doi.org/10.1103/physrevd.20.1633" @default.
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