Meson-baryon threshold effects in the light-quark baryon spectrum

Baryon-meson Interactions in Chiral Quark Model *

Using the resonating group method (RGM), we dynamically study the baryon-meson interactions in chiral quark model. Some interesting results are obtained: (1) The ΣK state has an attractive interaction, which consequently results in a ΣK quasibound state. When the channel coupling of ΣK and ΛK is considered, a sharp resonance appears between the thresholds of these two channels. (2) The interact...

Meson-baryon interactions and baryon resonances

Meson-baryon interactions are the fundamental building blocks to study the structures of baryon resonances and meson properties in few-body nuclear systems. We review the recent progress in the investigation of the meson-baryon interaction in the strangeness S “ ́1 sector and the structure of the Λp1405q resonance. In particular, we present an attempt to construct a realistic KN-πΣ interaction i...

The light baryon spectrum in a relativistic quark model with instanton-induced quark forces

This is the third of a series of papers treating light baryon resonances up to 3 GeV within a relativistically covariant quark model based on the Bethe-Salpeter equation with instantaneous twoand three-body forces. In this last paper we extend our previous work [2] on non-strange baryons to a prediction of the complete strange baryon spectrum and a detailed comparison with experiment. We apply ...

Unified meson-baryon potential

Meson and Baryon resonances

In this talk I review recent advances on the structure of the meson and baryon resonances which can be dynamically generated from the interaction of mesons or mesons and baryons. Particular emphasis is put on results involving vector mesons, which bring new light into the nature of some of the observed higher mass mesons and baryons and make predictions for new states.