Solvable mean-field plus extended pairing model

被引：1
|
作者：
Pan, F [1 ]
Gueorguiev, VG
Draayer, JP
机构：
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
[2] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2005年 / 14卷 / 01期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
extended pairing interaction; exact algebraic solution; strongly deformed nuclei;
D O I：
10.1142/S0218301305002795
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 mean-field Hamiltonian with an extended pairing interaction that includes multipair excitations is proposed for describing strongly-deformed nuclei. Solutions are easily obtained. The results show that even though the theory includes many-body interaction terms, the one- and two-body parts continue to dominate the dynamics for small values of the pairing strength. As the strength of the pairing interaction grows, however, the higher many-body interaction terms grow in importance. A numerical study of binding energies for the Yb154-181 isotopes demonstrates the applicability of the theory.
引用
收藏
页码：75 / 83
页数：9
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