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
收藏
页码：S81 / S87
页数：7
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