Rod-shaped Nuclei at Extreme Spin and Isospin

被引：110

作者：

Zhao, P. W. ^{[1
,2
,3
]}

Itagaki, N. ^{[1
]}

Meng, J. ^{[3
,4
,5
]}

机构：

[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[3] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[4] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[5] Univ Stellenbosch, Dept Phys, ZA-7602 Stellenbosch, South Africa

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 02期

关键词：

ROTATION; STATES; CLUSTER; DY-152; MG-24; O-16; LINE;

D O I：

10.1103/PhysRevLett.115.022501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The anomalous rod shape in carbon isotopes has been investigated in the framework of the cranking covariant density functional theory, and two mechanisms to stabilize such a novel shape with respect to the bending motion, extreme spin, and isospin are simultaneously discussed for the first time in a self-consistent and microscopic way. By adding valence neutrons and rotating the system, we have found the mechanism stabilizing the rod shape; i.e., the sigma orbitals (parallel to the symmetry axis) of the valence neutrons, important for the rod shape, are lowered by the rotation due to the Coriolis term. The spin and isospin effects enhance the stability of the rod-shaped configuration. This provides a strong hint that a rod shape could be realized in nuclei towards extreme spin and isospin.

引用

页数：6

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