Spontaneous fission half-lives of heavy and superheavy nuclei within a generalized liquid drop model

被引：43

作者：

Bao, Xiaojun ^{[1
]}

Zhang, Hongfei ^{[1
]}

Royer, G. ^{[2
]}

Li, Junqing ^{[1
,3
]}

机构：

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

[2] Univ Nantes, Ecole Mines, CNRS, Lab Subatech,UMR,IN2P3, Nantes, France

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

来源：

NUCLEAR PHYSICS A | 2013年 / 906卷

关键词：

Heavy and superheavy nuclei; Half-lives; Spontaneous fission; QUASI-MOLECULAR SHAPES; GROUND-STATE; ASYMMETRIC FISSION; BARRIERS; FUSION; DEFORMATIONS; STABILITY; ENERGIES; EMISSION; ELEMENTS;

D O I：

10.1016/j.nuclphysa.2013.03.002

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：

We systematically calculate the spontaneous fission half-lives for heavy and superheavy nuclei between U and Fl isotopes. The spontaneous fission process is studied within the semi-empirical WKB approximation. The potential barrier is obtained using a generalized liquid drop model, taking into account the nuclear proximity, the mass asymmetry, the phenomenological pairing correction, and the microscopic shell correction. Macroscopic inertial-mass function has been employed for the calculation of the fission half-life. The results reproduce rather well the experimental data. Relatively long half-lives are predicted for many unknown nuclei, sufficient to detect them if synthesized in a laboratory. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.

引用

页码：1 / 13

页数：13

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