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

ZHANG Gao-Long; LE Xiao-Yun

doi:10.1088/1674-1137/33/5/007

Chinese Physics C> 2009, Vol. 33> Issue(5) : 354-358 DOI: 10.1088/1674-1137/33/5/007

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

ZHANG Gao-Long ^, ,
LE Xiao-Yun

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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.

References

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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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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: ZHANG Gao-Long,

Received Date: 2008-06-05

Accepted Date: 2008-10-05

Available Online: 2009-05-05

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

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