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

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

2008-11-20

arxiv.org/abs/0811.3382v1

Int.J.Mod.Phys.E18:2197-2201,2009

Physics

Nuclear Physics

Nuclear Theory

5 pages, Talk given at Japanese French Symposium "New paradigms in Nuclear Physics", Institut Henri Poincare, Paris, 29 Septem

Scientific paper

10.1142/S021830130901455X

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.

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