| Isospin effect on spontaneous fission half-lives of even-even nuclei |
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| 作者姓名： | 陈玉庆 任中洲 许昌 郭艳青 |
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| 作者单位： | 1 Department of Physics, Nanjing University, Nanjing 210008, China;2 Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000, China |
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| 摘 要： | By using a new five-parameter formula derived from the WKB approximation, we systematically calculate the spontaneous fission half-lives of even-even nuclei with Z=90—108. The isospin effect is taken into account in the new formula. The calculated half-lives agree well with the experimental data. In addition, we predict the spontaneous fission half-lives of superheavy nuclei with Z=108—114. Our predictions may provide references for future experiments.
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| 关 键 词： | isospin effect WKB approximation spontaneous fission half-lives |
| 收稿时间： | 2008-7-17 |
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