Structure of Lambda(1405) and chiral dynamics

Details Structure of Lambda(1405) and chiral dynamics Structure of Lambda(1405) and chiral dynamics

2005-01-07

arxiv.org/abs/hep-ph/0501044v1

Nucl.Phys. A755 (2005) 669-672

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, 2 eps figures. Talk given at 10th International Conference on the Structure of Baryons (Baryon 2004) at Palais

Scientific paper

10.1016/j.nuclphysa.2005.03.082

We report on a recent theoretical work on the structure of the Lambda(1405) resonance within a chiral unitary approach, in which the resonance is dynamically generated in meson-baryon scattering. Studying the analytic structure of the scattering amplitude, we have found that there are two poles lying around energies of Lambda(1405) with different widths and couplings to the meson-baryon states. We discuss reactions to conform the double pole structure in experiment and elastic K^- p scattering at low energies.

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