Bibliographic Details
| Title: |
Skyrme-Rpa Description of Dipole Giant Resonance in Heavy and Superheavy Nuclei |
| Authors: |
Kleinig, W., Nesterenko, V. O., Kvasil, J., Reinhard, P. -G., Vesely, P. |
| Source: |
Phys.Rev.C78:044313,2008 |
| Publication Year: |
2008 |
| Collection: |
Nuclear Theory |
| Subject Terms: |
Nuclear Theory |
| More Details: |
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).
Comment: 9 pages, 12 figures, 2 tables |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevC.78.044313 |
| Access URL: |
http://arxiv.org/abs/0805.4787 |
| Accession Number: |
edsarx.0805.4787 |
| Database: |
arXiv |
