Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings

Details Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings

2002-12-05

arxiv.org/abs/nucl-th/0212026v2

Phys.Rev.C68:018201,2003

Physics

Nuclear Physics

Nuclear Theory

RevTeX4, 4 pages, 3 figures, 2 tables

Scientific paper

10.1103/PhysRevC.68.018201

We examine flavor SU(3) breaking effects on meson-baryon scattering amplitudes in the chiral unitary model. It turns out that the SU(3) breaking, which appears in the leading quark mass term in the chiral expansion, can not explain the channel dependence of the subtraction parameters of the model, which are crucial to reproduce the observed scattering amplitudes and resonance properties.

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