Chiral dynamics and baryon resonances

Abstract

The structure of baryon resonance in coupled-channel meson-baryon scattering is studied from the viewpoint of chiral dynamics. The meson-baryon scattering amplitude can be successfully described together with the properties of the resonance in the scattering, by implementing the unitarity condition for the amplitude whose low energy structure is constrained by chiral theorem. Recently, there have been a major progress in the study of the structure of the resonance in chiral dynamics. We review the methods to clarify the structure of the resonance by focusing on the Lambda(1405) resonance.

6 pages, talk give at 4th International Symposium on Symmetries in Subatomic Physics (SSP2009), June 2-5, 2009, National Taiwan University, Taipei

References in corpus (10)

• Effective Kbar N interaction based on chiral SU(3) dynamics
• Variational calculation of the ppK^- system based on chiral SU(3) dynamics
• Origin of resonances in the chiral unitary approach
• $K^{-}pp$ system with chiral SU(3) effective interaction
• Photoproduction of Lambda(1405) and Sigma^{0}(1385) on the proton at E_γ= 1.5-2.4 GeV
• Electromagnetic mean squared radii of Lambda(1405) in chiral dynamics
• Study of exotic hadrons in S-wave scatterings induced by chiral interaction in the flavor symmetric limit
• On the nature of the $\Lambda (1405)$ and $\Lambda (1670)$ from their $N_c$ behavior in chiral dynamics
• Structure of the Lambda(1405) baryon resonance from its large Nc behavior
• Exotic hadrons in s-wave chiral dynamics