Covariant meson-baryon scattering with chiral and large N_c constraints

Abstract

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.

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

References in corpus (6)

• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Pion-nucleon scattering in chiral perturbation theory II: Fourth order calculation
• J/Ψ\to ϕππ(K \bar{K}) decays, chiral dynamcis and OZI violation
• Chiral SU(3) Dynamics with Coupled Channels: Inclusion of P-Wave Multipoles
• Effective chiral theory of nucleon-nucleon scattering
• Electromagnetic corrections to the hadronic phase shifts in low energy pi+p elastic scattering

Cited by in corpus (27)

• On heavy-light meson resonances and chiral symmetry
• On meson resonances and chiral symmetry
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• Open-charm meson resonances with negative strangeness
• Baryonic Resonances from Baryon Decuplet-Meson Octet Interaction
• Electromagnetic transition form factors of light vector mesons
• Dynamically generated open charmed baryons beyond the zero range approximation
• On charm baryon resonances and chiral symmetry
• Baryon resonances from chiral coupled-channel dynamics
• D-wave baryon resonances with charm from coupled-channel dynamics
• Electromagnetic transitions in an effective chiral Lagrangian with the eta-prime and light vector mesons
• Dynamical light vector mesons in low-energy scattering of Goldstone bosons
• Pion- and photo-induced transition amplitudes to $\Lambda K$, $\Sigma K$, and $N\eta$
• The phase and pole structure of the N*(1535) in piN-->piN and gammaN-->piN
• Equation of State for Hot and Dense Matter: $\sigma$-$\omega$-$\rho$ Model with Scaled Hadron Masses and Couplings
• Photon-fusion reactions from the chiral Lagrangian with dynamical light vector mesons
• Relativistic Mean-Field Model with Scaled Hadron Masses and Couplings
• Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
• The associated photoproduction of positive kaons and ${\pi }^0\Lambda$ or $\pi \Sigma$ pairs in the region of the $\Sigma$(1385) and $\Lambda$(1405) resonances
• On the chiral expansion of vector meson masses
• On kinematical constraints in fermion-antifermion systems
• On coupled-channel dynamics in the presence of anomalous thresholds
• On kinematical constraints in the hadrogenesis conjecture for the baryon resonance spectrum
• Quark-mass dependence of baryon resonances
• Dynamics of strong and radiative decays of Ds-mesons in the hadrogenesis conjecture
• Dynamics of strong and radiative decays of Ds mesons