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Macroscopic and microscopic description of low-energy collective states in Se86,88

Macroscopic and microscopic description of low-energy collective states in Se86,88

Authors :
Mojgan Abolghasem
Y. Grachev
Tomás R. Rodríguez
G. Thiamova
P-G Reinhard
Petr Alexa
G. S. Simpson
Source :
Physical Review C. 98
Publication Year :
2018
Publisher :
American Physical Society (APS), 2018.

Abstract

Algebraic collective model (ACM) calculations for the even-even selenium isotopes $^{86,88}\mathrm{Se}$ have been performed to describe collective properties of these two transitional nuclei with only two and four valence neutrons, respectively. From the perspective of the ACM the nuclei turn out to be only weakly deformed, described by a very $\ensuremath{\gamma}$-soft potential. This is confirmed by Skyrme and Gogny energy density functional calculations. Additionally, the fully microscopic symmetry conserving configuration mixing method with the Gogny interaction has been applied to the study of these isotopes. The results show the transitional character of $^{86}\mathrm{Se}$ and the relevant role of the triaxial degree of freedom in the structure of these nuclei.

Details

ISSN :
24699993 and 24699985
Volume :
98
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi...........c1bbd05b64751ba5beefce5f32063167
Full Text :
https://doi.org/10.1103/physrevc.98.064304