Critical point symmetry for odd-odd nuclei and collective multiple chiral doublet bands

被引：9

作者：

Zhang, Yu ^{[1
]}

Qi, Bin ^{[2
]}

Zhang, Shuang-Quan ^{[3
]}

机构：

[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China

[2] Shandong Univ, Sch Space Sci & Phys, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China

[3] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 110871, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2021年 / 64卷 / 12期

基金：

中国国家自然科学基金;

关键词：

collective model; critical point symmetry; multiple chiral doublet bands; QUANTUM PHASE-TRANSITIONS; EUCLIDEAN DYNAMICAL SYMMETRY; SHAPE; GAMMA; FERMION; VERSION; MODEL; X(5);

D O I：

10.1007/s11433-021-1766-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A critical point symmetry (CPS) for odd-odd nuclei is built in the core-particle coupling scheme with the even-even core assumed to follow the spherical to triaxially deformed shape phase transition. It is shown that the model Hamiltonian can be approximately solved with the solutions being expressed in terms of the Bessel functions of irrational orders. In particular, the CPS predicts that collective multiple chiral doublets may exist in transitional odd-odd systems.

引用

页数：10

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