Axial quadrupole and octupole dynamics in heavy even-even nuclei

被引：0
作者：
Budaca, R. [1 ,2 ]
Buganu, P. [1 ]
Budaca, A. I. [1 ]
机构：
[1] Horia Hulubei Natl Inst R&D Phys & Nucl Engn, Str Reactorului 30,POB-MG6, RO-077125 Bucharest, Romania
[2] Acad Romanian Scientists, 54 Splaiul Independentei, RO-050094 Bucharest, Romania
来源：
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS | 2024年 / 47卷 / 02期
关键词：
DATA SHEETS;
D O I：
10.1393/ncc/i2024-24025-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A phenomenological geometrical model is proposed to describe collective states in even-even nuclei with quadrupole and octupole deformation. The model is applied for a systematic description of the rotation-vibration dynamics associated with the alternate parity bands observed in the isotopic chains of Ra, Th, U, and Pu nuclei. As a result, the A = 224-228 mass region of the Ra and Th nuclei was identified as critical for the transition between dynamic and static octupole deformation, which commences at different spins. The model also predicts a specific spin dependence for the transition probabilities in these critical nuclei.
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页数：4
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