Quadrupole and Octupole deformations with effective triaxiality in even–even nuclei

Autor: M. S. Nadirbekov, O. A. Bozarov, S. N. Kudiratov, N. Minkov
Rok vydání: 2022
Předmět:
Zdroj: International Journal of Modern Physics E. 31
ISSN: 1793-6608
0218-3013
DOI: 10.1142/s0218301322500781
Popis: In this paper, we develop a nonadiabatic collective model for even–even nuclei with effective triaxial quadrupole and octupole deformations. The model describes three-dimensional quadrupole–octupole rotation coupled with axial quadrupole–octupole vibrations. The moment-of-inertia tensor depends on the angular part of the polar coordinates in the quadrupole–octupole space, the values of which are determined from the ground state of the nucleus. In this model framework, the collective states of the yrast-alternating-parity band in the lanthanides [Formula: see text]Sm, [Formula: see text]Gd, [Formula: see text]Dy and the actinides [Formula: see text]Th, [Formula: see text]U, [Formula: see text]Pu are studied.
Databáze: OpenAIRE