Shape and energy spectra of Λ hypernuclei from a Skyrme-Hartree-Fock model and a beyond-mean-field calculation

被引：28

作者：

Cui, Ji-Wei ^{[1
,2
]}

Zhou, Xian-Rong ^{[1
,2
,3
]}

Schulze, Hans-Josef ^{[4
]}

机构：

[1] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

[4] Univ Catania, Dipartimento Fis, Sez INFN, I-95123 Catania, Italy

来源：

PHYSICAL REVIEW C | 2015年 / 91卷 / 05期

基金：

中国国家自然科学基金;

关键词：

P-SHELL HYPERNUCLEI; GENERATOR-COORDINATE METHOD; SELF-CONSISTENT CALCULATION; BINDING-ENERGIES; PARTICLE-NUMBER; HYPER-NUCLEI; ISOTOPES; SPECTROSCOPY; DEFORMATION; PREDICTIONS;

D O I：

10.1103/PhysRevC.91.054306

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 triaxial shape-constrained Skyrme-Hartree-Fock mean-field model, employing a density-dependent pairing interaction and the NSC89 N Lambda interaction, is used to investigate the potential energy surfaces of the Lambda hypernuclei (13)Lambda C, (21)Lambda Ne, (25,27)Lambda Mg, and (27,29)Lambda Si. Angular momentum projection and particle number projection techniques are applied to the axially deformed mean-field states to restore the symmetries lost in the mean-field calculation, and the energy spectra and E2 transition probabilities of several (hyper) nuclei are studied, demonstrating the shrinkage effect of the Lambda, which is analyzed in detail.

引用

页数：10

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