On the stability of high- K isomers in the second well of actinide nuclei

被引：25
|
作者：
Liu, H. L. [1 ,2 ,3 ]
Xu, F. R. [1 ,2 ,4 ]
Sun, Y. [3 ,4 ]
Walker, P. M. [5 ]
Wyss, R. [6 ]
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
[4] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Phys, Lanzhou 730000, Peoples R China
[5] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
[6] KTH Royal Inst Technol, AlbaNova Univ Ctr, S-10691 Stockholm, Sweden
来源：
EUROPEAN PHYSICAL JOURNAL A | 2011年 / 47卷 / 11期
基金：
中国国家自然科学基金;
关键词：
FISSION ISOMERS; SHAPE ISOMER; SYSTEMATICS; TRANSITION; ISOTOPES; MASSES; FORCE;
D O I：
10.1140/epja/i2011-11135-y
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：
Actinide nuclei are found to be good candidates for the formation of high angular momentum, broken-pair excitations in the second minimum of the potential-energy surface. Configuration-constrained calculations of the energy surfaces, including reflection asymmetry, give predictions of the properties of high-K states in the second well. In addition to excitation energies, spins and parities, the calculations indicate increased barriers towards fission, consistent with the extended half-lives observed experimentally.
引用
收藏
页码：1 / 5
页数：5
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