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Renormalization of the f(0)(980) and a(0)(980) scalar resonances in a nuclear medium

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dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Vicente Vacas, Manuel José
dc.date.accessioned	2014-10-24T08:19:57Z
dc.date.available	2014-10-24T08:19:57Z
dc.date.issued	2000
dc.identifier.citation	Oset Báguena, Eulogio Vicente Vacas, Manuel José 2000 Renormalization of the f(0)(980) and a(0)(980) scalar resonances in a nuclear medium Nuclear Physics A 678 4 424 442
dc.identifier.uri	http://hdl.handle.net/10550/39341
dc.description.abstract	The meson-meson interaction in the scalar sector in the presence of a nuclear medium is studied with particular attention to the change of the properties of the f(0)(980) and a(0)(980) resonances. By using a chiral unitary approach which generates the f(0) and a(0) resonances and reproduces their free properties, we find that the position of the resonances in the medium is barely changed but their widths are considerably broadened. New many body corrections generating from higher orders in the chiral Lagrangian plus the contribution from N*h excitations, not considered before in connection with the pi pi interaction in the nuclear medium, are also investigated.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics A, 2000, vol. 678, num. 4, p. 424-442
dc.subject	Física
dc.title	Renormalization of the f(0)(980) and a(0)(980) scalar resonances in a nuclear medium
dc.type	journal article	es_ES
dc.date.updated	2014-10-24T08:19:57Z
dc.identifier.doi	10.1016/S0375-9474(00)00333-X
dc.identifier.idgrec	079395
dc.rights.accessRights	open access	es_ES