Structure analysis of 159Sm and properties of odd-mass neutron-rich nuclei in mass-160 region

被引：12

作者：

Yang YingChun ^{[1
]}

Sun Yang ^{[1
,2
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2011年 / 54卷

基金：

中国国家自然科学基金;

关键词：

projected shell model; neutron-rich nuclei; low-lying excitations; isomeric states; SPONTANEOUS FISSION; IDENTIFICATION; CF-252; STATES; MODEL;

D O I：

10.1007/s11433-011-4411-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent fission experiment data provide interesting structure information for neutron-rich nuclei in the mass A similar to 60 region. We apply the projected shell model to study the strongly-deformed, neutron-rich Sm isotopes. We perform calculations for rotational bands up to spin I = 20 (29/2) for even-even (odd-neutron) Sm isotopes, and analyze the band structure of low-lying states with quasiparticle excitations. Emphasis is given to rotational bands based on one-quasiparticle (1-qp) configurations in the odd-mass Sm-159. The Sm-159 result is discussed together with those of the even-even isotopes Sm-158,Sm-160. New bands in Sm-159 based on neutron 1-qp 1/2(-) and 5/2(+) configurations are predicted. Electromagnetic transition probabilities are discussed.

引用

页码：S81 / S87

页数：7

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