| Systematic studies on α-decay half-lives for super heavy nuclei |
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| 作者单位： | ZHANG Di-Da(School of Nuclear Engineering and Technology,East China Institute of Technology,Fuzhou,Jiangxi 344000,China;China Institute of Atomic Energy,P.O.Box 27518,Beijing 102413,China);CHEN Bao-Qiu,MA Zhong-Yu(China Institute of Atomic Energy,P.O.Box 27518,Beijing 102413,China) |
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| 基金项目： | 国家自然科学基金，Major State Basic Research Development Programme in China |
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| 摘 要： | Radioactive decay of super heavy nuclei via the emission of α-particles has been studied theoretically in the preformed cluster model (PCM). The nucleus-nucleus (NN) potential is obtained by double folding the density distributions of the α-particle and the daughter nucleus with a realistic effective interaction. The M3Y effective interaction, supplemented by a zero-range pseudo-potential for exchange term, is used to calculate the NN potential. The α decay half-lives for 317 nuclei at Z=102–120 are performed in the PCM framework with the theoretical Q values extracted from the Mller-Nix-Kratz and Liran-Marinov-Zeldes mass tables and are compared with the experimental data. The calculated results are also compared with those obtained by using Q values from the Muntian-Hofmann-Patyk-Sobiczewski and Myers-Swiatecki mass estimates.
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| 关 键 词： | α-dacay half lives |
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