Abstract
A recalculation of the meson-baryon scattering lengths yielded a good agreement with experimental data and a qualitative agreement with a previous calculation of Von Hippel and Kim. The connected matrix element of the singlet member of the SU (3) ⊗ SU (3) scalar nonet (3,3 ∗) + (3 ∗,3) between baryon states μ 0 was found to be 290 ± 32 MeV and the pion-nucleon σ-term 30 ± 2 MeV.
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