Skyrme-Rpa Description of Dipole Giant Resonance in Heavy and Superheavy Nuclei

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dc.creatorKleinig, W.
dc.creatorNesterenko, V. O.
dc.creatorKvasil, J.
dc.creatorReinhard, P. -G.
dc.creatorVesely, P.
dc.date2008-05-30
dc.date.accessioned2026-07-07T11:51:16Z
dc.date.available2026-07-07T11:51:16Z
dc.descriptionThe E1(T=1) isovector dipole giant resonance (GDR) in heavy and super-heavy deformed nuclei is analyzed over a sample of 18 rare-earth nuclei, 4 actinides and three chains of super-heavy elements (Z=102, 114 and 120). Basis of the description is self-consistent separable RPA (SRPA) using the Skyrme force SLy6. The self-consistent model well reproduces the experimental data (energies and widths) in the rare-earth and actinide region. The trend of the resonance peak energies follows the estimates from collective models, showing a bias to the volume mode for the rare-earths isotopes and a mix of volume and surface modes for actinides and super-heavy elements. The widths of the GDR are mainly determined by the Landau fragmentation which in turn is found to be strongly influenced by deformation. A deformation splitting of the GDR can contribute about one third to the width and about 1 MeV further broadening can be associated to mechanism beyond the mean-field description (escape, coupling with complex configurations).
dc.description9 pages, 12 figures, 2 tables
dc.identifierhttps://arxiv.org/abs/0805.4787
dc.identifierhttp://arxiv.org/abs/0805.4787
dc.identifierPhys.Rev.C78:044313,2008
dc.identifierdoi:10.1103/PhysRevC.78.044313
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203839
dc.subjectNuclear Theory
dc.titleSkyrme-Rpa Description of Dipole Giant Resonance in Heavy and Superheavy Nuclei
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