Covariant meson-baryon scattering with chiral and large N_c constraints

Details Covariant meson-baryon scattering with chiral and large N_c constraints Covariant meson-baryon scattering with chiral and large N_c constraints

2001-05-28

arxiv.org/abs/nucl-th/0105068v1

Found.Phys. 31 (2001) 1671-1702

Physics

Nuclear Physics

Nuclear Theory

27 pages, 5 figures, Invited talk given by M.F.M.L. at the IARD 2000 meeting

Scientific paper

We give a review of recent progress on the application of the relativistic chiral SU(3) Lagrangian to meson-baryon scattering. It is shown that a combined chiral and 1/N_c expansion of the Bethe-Salpeter interaction kernel leads to a good description of the kaon-nucleon, antikaon-nucleon and pion-nucleon scattering data typically up to laboratory momenta of p_lab about 500 MeV. We solve the covariant coupled channel Bethe-Salpeter equation with the interaction kernel truncated to chiral order Q^3 where we include only those terms which are leading in the large N_c limit of QCD.

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