Semiclassical unified description of wobbling motion in even-even and even-odd nuclei

被引：20

作者：

Raduta, A. A. ^{[1
,2
]}

Poenaru, R. ^{[1
]}

Ixaru, L. Gr. ^{[1
,2
]}

机构：

[1] Inst Phys & Nucl Engn, Dept Theoret Phys, POB MG6, Bucharest, Romania

[2] Acad Romanian Scientists, 54 Splaiul Independentei, Bucharest 050094, Romania

来源：

PHYSICAL REVIEW C | 2017年 / 96卷 / 05期

关键词：

CRITICAL-POINT SYMMETRY; ASYMMETRIC ROTOR MODEL; PHONON EXCITATIONS; LIMITING SYMMETRY; PARITY STATES; MASS NUCLEI; YRAST LINE; MEAN-FIELD; LU-163; DEFORMATION;

D O I：

10.1103/PhysRevC.96.054320

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A unitary description for wobbling motion in even-even and even-odd nuclei is presented. In both cases compact formulas for wobbling frequencies are derived. The accuracy of the harmonic approximation is studied for the yrast as well as for the excited bands in the even-even case. Important results for the structure of the wave function and its behavior inside the two wells of the potential energy function corresponding to the Bargmann representation are pointed out. Applications to Er-158 and Lu-163 reveal a very good agreement with available data. Indeed, the yrast energy levels in the even-even case and the first four triaxial superdeformed bands, TSD1, TSD2, TSD3, and TSD4, are realistically described. Also, the results agree with the data for the E2 and M 1 intra-as well as interband transitions. Perspectives for the formalism development and an extensive application to several nuclei from various regions of the nuclides chart are presented.

引用

页数：23

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