Chiral dynamics, structure of Lambda(1405), and Kbar N phenomenology

Abstract

We investigate the structure of the Lambda(1405) resonance and Kbar N phenomenology in the perspective of chiral SU(3) dynamics. Utilizing the chiral coupled-channel approach which well describes the Kbar N scattering observable, we perform three different analyses to clarify the structure of the Lambda(1405) resonance. The results consistently indicate the meson-baryon molecule picture of the Lambda(1405). We argue the consequence of the chiral dynamics in Kbar N phenomenology and the antikaon bound state in nucleus, emphasizing the important role of the strong pi Sigma interaction.

5 pages, Talk given at Japanese French Symposium "New paradigms in Nuclear Physics", Institut Henri Poincare, Paris, 29 September - 2 October, 2008

References in corpus (6)

• Chiral Dynamics of the Two Λ(1405) States
• On the nature of light scalar mesons from their large $N_c$ behavior
• Effective Kbar N interaction based on chiral SU(3) dynamics
• Origin of resonances in the chiral unitary approach
• $K^{-}pp$ system with chiral SU(3) effective interaction
• Electromagnetic mean squared radii of Lambda(1405) in chiral dynamics