Competition between α-decay and β-decay for heavy andsuperheavy nuclei |
| |
引用本文: | 圣宗强,舒良萍,孟影,胡继刚,钱建发.Competition between α-decay and β-decay for heavy andsuperheavy nuclei[J].中国物理 C,2014,38(12). |
| |
作者姓名: | 圣宗强 舒良萍 孟影 胡继刚 钱建发 |
| |
作者单位: | 1 School of Science, Anhui University of Science and Technology, Huainan 232001, China;;2 School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China |
| |
基金项目: | Supported by National Natural Science Foundation of China(11247001);Natural Science Foundation of the Higher Education Institutions of Anhui Province,China(KJ2012A083 and KJ2013Z066);Fundamental Research Funds for the Central Universities of China(2012HG2Y0004) |
| |
摘 要: | In this work, the β-stable region for Z≥90 is proposed based on a successful binding energy formula. The calculated β-stable nuclei in the β-stable region are in good agreement with the ones obtained by Möller et al. The half-lives of the nuclei close to the β-stable region are calculated and the competition between α-decay and β-decay is systematically investigated. The calculated half-lives and the suggested decay modes are well in line with the experimental results. The decay modes are mostly β--decay above the β-stable region. Especially for Z≤111, all the decay modes are β--decay. Regarding the nuclei above the β-stable region, α-decay and β--decay (α+β-) can occur simultaneously when Z≥112. This is a very interesting phenomenon. The competition between α-decay and β-decay is very complex and drastic below the β-stable region. The predictions for half-lives and decay modes of the nuclei with Z=107-110 are presented in detail.
|
关 键 词: | decay β-stable region half-life superheavy nuclei |
收稿时间: | 2014-1-15 |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
| 点击此处可从《中国物理 C》下载免费的PDF全文 |
|