Global α-decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory

  • The α-decay energies(Qα) are systematically investigated with the nuclear masses for 10 ≤ Z ≤ 120 isotopes obtained by the relativistic continuum Hartree-Bogoliubov(RCHB) theory with the covariant density functional PC-PK1, and compared with available experimental values. It is found that the α-decay energies deduced from the RCHB results present a similar pattern to those from available experiments. Owing to the large predicted Qα values(≥ 4 MeV), many undiscovered heavy nuclei in the proton-rich side and super-heavy nuclei may have large possibilities for α-decay. The influence of nuclear shell structure on α-decay energies is also analysed.
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Lin-Feng Zhang and Xue-Wei Xia. Global α-decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory[J]. Chinese Physics C, 2016, 40(5): 054102. doi: 10.1088/1674-1137/40/5/054102
Lin-Feng Zhang and Xue-Wei Xia. Global α-decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory[J]. Chinese Physics C, 2016, 40(5): 054102.  doi: 10.1088/1674-1137/40/5/054102 shu
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    Supported by Major State 973 Program of China(2013CB834400), National Natural Science Foundation of China(11175002, 11335002, 11375015, 11461141002), Research Fund for the Doctoral Program of Higher Education(20110001110087) and National Undergraduate Innovation Training Programs of Peking University

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Global α-decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory

    Corresponding author: Xue-Wei Xia,
  • 1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  • 2. Yuanpei College, Peking University, Beijing 100871, China
  • 3.  School of Physics and Nuclear Energy Engineering and International Research Center for Nuclei and Particles in the Cosmos, Beihang University, Beijing 100191, China
Fund Project:  Supported by Major State 973 Program of China(2013CB834400), National Natural Science Foundation of China(11175002, 11335002, 11375015, 11461141002), Research Fund for the Doctoral Program of Higher Education(20110001110087) and National Undergraduate Innovation Training Programs of Peking University

Abstract: The α-decay energies(Qα) are systematically investigated with the nuclear masses for 10 ≤ Z ≤ 120 isotopes obtained by the relativistic continuum Hartree-Bogoliubov(RCHB) theory with the covariant density functional PC-PK1, and compared with available experimental values. It is found that the α-decay energies deduced from the RCHB results present a similar pattern to those from available experiments. Owing to the large predicted Qα values(≥ 4 MeV), many undiscovered heavy nuclei in the proton-rich side and super-heavy nuclei may have large possibilities for α-decay. The influence of nuclear shell structure on α-decay energies is also analysed.

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