Detailed Analysis of the Chiral Unitary Model for Meson-Baryon Scattering with Flavor SU (3) Breaking Effects

  title={Detailed Analysis of the Chiral Unitary Model for Meson-Baryon Scattering with Flavor SU (3) Breaking Effects},
  author={Tetsuo Hyodo and S. I. Nam and D. Jido and A.Hosaka Rcnp and Osaka Univ. and Pusan National Univ. and Ect and Trento},
  journal={Progress of Theoretical Physics},
We study s-wave meson-baryon scattering using the chiral unitary model. We consider 1/2 − baryon resonances as quasibound states of the low lying mesons (π, K, η) and baryons (N, Λ, Σ, Ξ). In previous works, the subtraction constants which appear in loop integrals were found to largely depend on the channels, and it was necessary to fit these constants to reproduce the data. In order to extend this model to all channels with fewer parameters, we introduce flavor SU(3) breaking interactions in… 
26 Citations
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