Electromagnetic mean squared radii of Lambda(1405) in chiral dynamics

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dc.creatorSekihara, T.
dc.creatorHyodo, T.
dc.creatorJido, D.
dc.date2008-03-28
dc.date2008-10-21
dc.date.accessioned2026-07-07T11:49:24Z
dc.date.available2026-07-07T11:49:24Z
dc.descriptionThe electromagnetic mean squared radii, <r^2>_E and <r^2>_M, of Lambda(1405) are calculated in the chiral unitary model. We describe the excited baryons as dynamically generated resonances in the octet meson and octet baryon scattering. We evaluate values of <r^2>_E and <r^2>_M for the Lambda(1405) on the resonance pole and obtain their complex values. We also consider Lambda(1405) obtained by neglecting decay channels. For the latter case, we obtain negative and larger absolute electric mean squared radius than that of typical ground state baryons. This implies that Lambda(1405) has structure that K^- is widely spread around p.
dc.description7 pages, 4 figures, use elsart3p.cls
dc.identifierhttps://arxiv.org/abs/0803.4068
dc.identifierhttp://arxiv.org/abs/0803.4068
dc.identifierPhys.Lett.B669:133-138,2008
dc.identifierdoi:10.1016/j.physletb.2008.09.023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203222
dc.subjectNuclear Theory
dc.titleElectromagnetic mean squared radii of Lambda(1405) in chiral dynamics
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