Shape coexistence and α-decay chains of 293Lv

被引：5
作者：
Li, Zhao-Xi [1 ]
Zhang, Zhen-Hua [2 ,3 ]
Zhao, Peng-Wei [2 ]
机构：
[1] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
[2] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] North China Elect Power Univ, Dept Math & Phys, Beijing 102206, Peoples R China
来源：
FRONTIERS OF PHYSICS | 2015年 / 10卷 / 03期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
shape coexistence; alpha decay; (293)Lv; covariant density functional theory; GROUND-STATE PROPERTIES; HARTREE-BOGOLIUBOV THEORY; SUPERHEAVY NUCLEI; CROSS-SECTIONS; FUSION REACTIONS; STABILITY; ELEMENTS; MASSES; HEAVY; ISOTOPES;
D O I：
10.1007/s11467-015-0474-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two recently observed (293)Lv (Z = 116) alpha-decay chains [Eur. Phys. J. A 48, 62 (2012)] are investigated in the framework of covariant density functional theory with PC-PK1, where the pairing correlations are treated by the Bardeen-Cooper-Schrieffer method with a density-independent zerorange force. From the calculated potential energy curves, it is found that two minima always occur, with one having an almost spherical shape and the other exhibiting a large deformed prolate shape. Originating from the ground state and the shape-isomeric state of (293)Lv, the two observed alpha-decay chains are constructed and the calculated Q (alpha) values are found to be in good agreement with the data.
引用
收藏
页码：268 / 275
页数：8
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