{ "id": "0805.4787", "version": "v1", "published": "2008-05-30T15:12:16.000Z", "updated": "2008-05-30T15:12:16.000Z", "title": "Skyrme-Rpa Description of Dipole Giant Resonance in Heavy and Superheavy Nuclei", "authors": [ "W. Kleinig", "V. O. Nesterenko", "J. Kvasil", "P. -G. Reinhard", "P. Vesely" ], "comment": "9 pages, 12 figures, 2 tables", "journal": "Phys.Rev.C78:044313,2008", "doi": "10.1103/PhysRevC.78.044313", "categories": [ "nucl-th" ], "abstract": "The 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).", "revisions": [ { "version": "v1", "updated": "2008-05-30T15:12:16.000Z" } ], "analyses": { "subjects": [ "27.90.+b", "27.70.+q", "24.30.Cz", "21.60.Jz" ], "keywords": [ "superheavy nuclei", "skyrme-rpa description", "isovector dipole giant resonance", "super-heavy elements", "skyrme force sly6" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review C", "year": 2008, "month": "Oct", "volume": 78, "number": 4, "pages": "044313" }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 787433, "adsabs": "2008PhRvC..78d4313K" } } }