Competition between α decay and cluster radioactivity for superheavy nuclei with a universal decay-law formula

被引：18

作者：

Bao, Xiao Jun ^{[1
]}

Zhang, Hai Fei ^{[1
]}

Dong, Jian Min ^{[2
,3
,4
,5
,6
]}

Li, Jun Qing ^{[1
,4
,5
,6
]}

Zhang, Hong Fei ^{[1
,2
,3
,5
,6
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Res Ctr Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[3] Inst Modern Phys CAS, Lanzhou 730000, Peoples R China

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

[5] Chinese Acad Sci, KITPC, Beijing 100190, Peoples R China

[6] Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW C | 2014年 / 89卷 / 06期

关键词：

SPONTANEOUS EMISSION;

D O I：

10.1103/PhysRevC.89.067301

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：

A recent proposed universal decay law (UDL) for alpha-decay and cluster radioactivity (CR) half-lives [C. Qi, F. R. Xu, R. J. Liotta, and R. Wyss, Phys. Rev. Lett 103, 072501 (2009)] that can accurately reproduce the experimental data was introduced starting from alpha-like R-matrix theory. The UDL formula depends only on the mass and charge numbers of the charged particle and the Q value. The new mass table AME2012 and the theoretical FRDM95, KTUY05, and WS2011 masses are used to determine the Q values. We systematically investigate the branching ratios of cluster radioactivity with respect to a decay for even-even superheavy nuclei (SHN) with Z = 104-120 using the UDL formula. It is found that cluster radioactivity can be compared to alpha decay in neutron-rich SHN.

引用

页数：5

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