Speaker
Prof.
Alexandrina Petrovici
(IFIN-HH)
Description
The structure of neutron-rich nuclei in the A~100 mass region
relevant for the astrophysical r-process manifests drastic changes in some isotopic chains and often sudden variations of particular
nuclear properties have been identified. For a realistic description of the evolution in structure with increasing spin, energy, and isospin determined by shape coexistence and mixing beyond-mean-field approaches are required.
Our recent studies represent an attempt to the self-consistent description of the shape coexistence phenomena in neutron-rich A~100 nuclei (1,2,3) within the complex Excited Vampir variational model with symmetry projection before variation using a realistic effective interaction based on the Bonn A potential in a large model space. The triple shape coexistence and the shape evolution in the N=58 Sr and Zr isotopes, the shape evolution in a chain of Zr nuclei, as well as the Gamow-Teller beta-decay properties of neutron-rich Zr nuclei will be presented.
1. A. Petrovici, K.W. Schmid, A. Faessler, J.Phys. 312, 092051 (2011).
2. A. Petrovici, K.W. Schmid, A. Faessler, Prog. Part. Nucl. Phys. 66, 287 (2011).
3. A. Petrovici, Phys. Rev. C85, 034337 (2012).
Primary author
Prof.
Alexandrina Petrovici
(IFIN-HH)
