Predictions for α-decay half-lives of heavy and superheavy elements with a generalized liquid drop model

被引：5

作者：

Wang, Jia Mei ^{[1
]}

Zhang, Hong Fei ^{[1
]}

Li, Jun Qing ^{[1
,2
]}

机构：

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

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

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2014年 / 41卷 / 07期

关键词：

alpha-decay; generalized liquid drop model; half-life; QUASI-MOLECULAR SHAPES; NUCLEAR PROPERTIES; HEAVIEST ELEMENTS; FISSION; DISINTEGRATION; STABILITY; EMISSION; GSI;

D O I：

10.1088/0954-3899/41/7/075109

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：

Theoretical estimates for the lifetimes of several isotopes of heavy and superheavy elements with Z = 100-126 are performed in the framework of the generalized liquid drop model including the proximity effects, the mass and charge asymmetry. The alpha-decay half-lives calculated using the experimental Q-values were found to be in reasonable agreement with experimental data. Half-lives with the Q-values from the finite-range droplet model (FRDM) and the macroscopic-microscopic method (MMM) are presented for comparison. It is found that the half-life calculations are quite sensitive to the choice of Q-values. The results show that the half-lives obtained by the theoretical Q-values from MMM are better in agreement with experimental ones than those with Q-values from FRDM. Finally, some predications on the alpha-decay half-lives using the two kinds of theoretical Q-values are provided for future experimental assignment and identification.

引用

页数：9

共 43 条

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