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E(5) and X(5) shape phase transitions within a Skyrme-Hartree-Fock + BCS approach

AutorRodríguez-Guzmán, R. ; Sarriguren, Pedro
Palabras clave[PACS] Nuclear Density Functional Theory and extensions (includes Hartree–Fock and random-phase approximations)
[PACS] Models based on group theory
[PACS] Properties of specific nuclei listed by mass ranges: 90 ≤ A ≤ 149
[PACS] Properties of specific nuclei listed by mass ranges: 150 ≤ A ≤ 189
Fecha de publicación5-dic-2007
EditorAmerican Physical Society
CitaciónPhysical Review C 76(6): 064303 (2007)
ResumenSelf-consistent Skyrme-Hartree-Fock plus BCS calculations are performed to generate potential energy curves (PECs) in various chains of Pd, Xe, Ba, Nd, Sm, Gd, and Dy isotopes. The evolution of shapes with the number of nucleons is studied in a search for signatures of E(5) and X(5) critical point symmetries. It is shown that the energy barriers in the PECs are determined to a large extent by the treatment of the pairing correlations.
Descripción8 pages, 2 tables, 12 figures.-- PACS nrs.: 21.60.Jz; 21.60.Fw; 27.60.+j; 27.70.+q.-- ArXiv pre-print available at: http://arxiv.org/abs/0711.1308v1
Versión del editorhttp://dx.doi.org/10.1103/PhysRevC.76.064303
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