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Analytic expressions for alpha particle preformation in heavy nuclei

Abstract : The experimental alpha decay energies and half-lives are investigated systematically to extract the alpha particle preformation in heavy nuclei. Formulas for the preformation factors are proposed. They can be used to guide the microscopic studies on preformation factors and perform accurate calculations of the alpha decay half-lives. There is little evidence for the existence of an island of long stability of superheavy nuclei (SHN).
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H.F. Zhang, G. Royer, Y.J. Wang, J.M. Dong, W. Zuo, et al.. Analytic expressions for alpha particle preformation in heavy nuclei. Physical Review C, American Physical Society, 2009, 80, pp.057301. ⟨10.1103/PhysRevC.80.057301⟩. ⟨in2p3-00429700⟩

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