Electromagnetic Mean Squared Radii of Lambda(1405) in Meson-baryon Dynamics with Chiral Symmetry

Details Electromagnetic Mean Squared Radii of Lambda(1405) in Meson-baryon Dynamics with Chiral Symmetry Electromagnetic Mean Squared Radii of Lambda(1405) in Meson-baryon Dynamics with Chiral Symmetry

2008-07-14

arxiv.org/abs/0807.2091v1

Prog.Theor.Phys.Suppl.174:266-269,2008

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures, use ptptex.cls. Talk given at YITP International Symposium: Fundamental Problems in Hot and/or Dense QCD,

Scientific paper

10.1143/PTPS.174.266

Electromagnetic mean squared radii of Lambda(1405) are evaluated in chiral unitary approach. In this approach we regard Lambda(1405) as dynamically generated resonances in the octet meson and octet baryon scattering, and also as KbarN bound state. Especially for the Lambda(1405) as KbarN bound state we obtain negative electric mean squared radius. With the small binding energy of Lambda(1405) in the chiral unitary approach, our results imply that Lambda(1405) has structure that K^- is widely spread around p.

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