D. Jido, J. A. Oller, E. Oset, A. Ramos, U. -G. Meissner
Published 2005-01-07Version 1
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.
Comments: 4 pages, LaTeX, 2 eps figures. Talk given at 10th International Conference on the Structure of Baryons (Baryon 2004) at Palaiseau (France), 25-29 October 2004
Journal: Nucl.Phys. A755 (2005) 669-672
On the nature of the $Λ(1405)$ and $Λ(1670)$ from their $N_c$ behavior in chiral dynamics
Chiral Dynamics
Chiral dynamics - status and perspectives
