Calculation of α decay half-lives for superheavy elements using the double folding model

  • α decay half-lives of some new synthesized superheavy elements, possibly synthesized superheavy elements and decay products are calculated theoretically within the WKB approximation by using microscopic α-nucleus interaction potentials. These nuclear potentials between the α particle and daughter nuclei are obtained by using the double folding integral of the matter density distribution of the α particle and daughter nuclei with a density-dependent effective nucleon-nucleon interaction, in which the zero-range exchange term is supplemented. The calculated α decay half-lives are compared with those of the different models and experimental data. It is shown that the present calculation successfully provides the half-lives of the observed α decays for some new superheavy elements and therefore gives reliable predictions for α decay of possibly synthesized superheavy elements in future experiments.

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ZHANG Gao-Long and LE Xiao-Yun. Calculation of α decay half-lives for superheavy elements using the double folding model[J]. Chinese Physics C, 2009, 33(5): 354-358. doi: 10.1088/1674-1137/33/5/007
ZHANG Gao-Long and LE Xiao-Yun. Calculation of α decay half-lives for superheavy elements using the double folding model[J]. Chinese Physics C, 2009, 33(5): 354-358.  doi: 10.1088/1674-1137/33/5/007 shu
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Received: 2008-06-05
Revised: 2008-10-05
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Calculation of α decay half-lives for superheavy elements using the double folding model

    Corresponding author: ZHANG Gao-Long,

Abstract: 

α decay half-lives of some new synthesized superheavy elements, possibly synthesized superheavy elements and decay products are calculated theoretically within the WKB approximation by using microscopic α-nucleus interaction potentials. These nuclear potentials between the α particle and daughter nuclei are obtained by using the double folding integral of the matter density distribution of the α particle and daughter nuclei with a density-dependent effective nucleon-nucleon interaction, in which the zero-range exchange term is supplemented. The calculated α decay half-lives are compared with those of the different models and experimental data. It is shown that the present calculation successfully provides the half-lives of the observed α decays for some new superheavy elements and therefore gives reliable predictions for α decay of possibly synthesized superheavy elements in future experiments.

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