Title: Robust Regularity in gamma-Soft Nuclei and Its Microscopic Realization
Authors: Nomura, K ×
Shimizu, N
Vretenar, D
Niksic, T
Otsuka, Taka #
Issue Date: 2012
Publisher: American Physical Society
Series Title: Physical Review Letters vol:108 issue:13
Article number: 132501
Abstract: softness in atomic nuclei is investigated in the framework of energy density functionals. By mapping
constrained microscopic energy surfaces for a set of representative nonaxial medium-heavy and heavy
nuclei to a Hamiltonian of the proton-neutron interacting boson model (IBM-2) containing up to three-
body interactions, low-lying collective spectra and transition rates are calculated. Observables are
analyzed that distinguish between the two limiting geometrical pictures of nonaxial nuclei: the rigid-
triaxial rotor and the

-unstable rotor. It is shown that neither of these pictures is realized in actual nuclei,
and that a microscopic description leads to results that are almost exactly in between the two geometrical
limits. This finding points to the optimal choice of the
-soft nuclei.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
PhysRevLett.108.132501.pdf Published 986KbAdobe PDFView/Open


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science