Simultaneous description of wobbling and chiral properties in even-odd triaxial nuclei

被引:5
|
作者
Raduta, C. M. [1 ]
Raduta, A. A. [1 ,2 ]
Poenaru, R. [1 ,3 ]
Raduta, Al Horia [1 ]
机构
[1] Natl Inst Phys & Nucl Engn, Dept Theoret Phys, POB MG6, Bucharest, Romania
[2] Acad Romanian Scientists, 54 Splaiul Independentei, Bucharest 050094, Romania
[3] Bucharest Univ, Doctoral Sch Phys, Soseaua Panduri 90,Sect 5, Bucharest 050663, Romania
关键词
simultaneous; descriptions; wobbling; chiral; properties; even-odd; wobbling motion; BANDS; SYMMETRIES; STATES; E(5);
D O I
10.1088/1361-6471/ac3c34
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 particle-triaxial rigid core Hamiltonian is semi-classically treated. The coupling term corresponds to a particle rigidly coupled to the triaxial core, along a direction that does not belong to any principal plane of the inertia ellipsoid. The equations of motion for the angular momentum components provide a sixth-order algebraic equation for one component and subsequently equations for the other two. Linearizing the equations of motion, a dispersion equation for the wobbling frequency is obtained. The equations of motion are also considered in the reduced space of generalized phase space coordinates. Choosing successively the three axes as quantization axis will lead to analytical solutions for the wobbling frequency, respectively. The same analysis is performed for the chirally transformed Hamiltonian. With an illustrative example one identified wobbling states whose frequencies are mirror image to one another. Changing the total angular momentum I, a pair of twin bands emerged. Note that the present formalism conciliates between the two signatures of triaxial nuclei, i.e., they could coexist for a single nucleus.
引用
收藏
页数:18
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