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Abstract

Based on the exponential formula of β--decay half-lives for nuclei far from stable line, the half-lives of nuclei around N=82 (R-process waiting point nuclei) are calculated. The results are compared with recent theoretical and experimental data. It is shown that compared with the complicated and time-consuming microscopic calculation, the exponential formula including the shell effect can give the results of β--decay half-lives for R-process waiting point nuclei quicker and better. The results can be used as reliable inputs for the network calculation for nuclei synthesis in cosmos.

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Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 11105079, 11165006, 11365006), the International Science and Technology Cooperation Program of Guizhou Province, China (Grant No. 20117026), the Training Program for Excellent Young Talents in Science and Technology of Guizhou Province, China (Grant No. 2011-29), the Scientific Research Program for the Returned Overseas Chinese Scholars of Guizhou Provine, China (Grant No. 2013-03), the Foundation for Development of Science and Technology of Macau, China (Grant No. 068-2011A), and the Key Program of the Student Scientific Research Foundation for Natural Science of Guizhou Normal University, China.

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Vol. 63, Issue 16 - 2014-08-20

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