Meson-baryon coupling constants from a chiral-invariant SU(3) Lagrangian and application to NN scattering

Abstract

We present a chiral-invariant meson-baryon Lagrangian which describes the interactions of the baryon octet with the lowest-mass meson nonets. The nonlinear realization of the chiral symmetry generates pair-meson interaction vertices. The corresponding pair-meson coupling constants can all be expressed in terms of the meson-nucleon-nucleon pseudovector, scalar, and vector coupling constants, and their corresponding $F/(F+D)$ ratios, and for which empirical estimates are given. We show that it is possible to construct an NN potential of reasonable quality satisfying these theoretical and empirical constraints.

30 pages, RevTeX, no figures, submitted to Nucl. Phys. A

References in corpus (1)

• The Two-Nucleon Potential from Chiral Lagrangians

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