Study on the α-Decay Lifetimes of Superheavy Elements

XU Chang; REN Zhong-Zhou

Chinese Physics C> 2003, Vol. 27> Issue(12) : 1089-1094

Study on the α-Decay Lifetimes of Superheavy Elements

XU Chang ,
REN Zhong-Zhou ^,

Department of Physics,Nanjing University,Nanjing 210008,China2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator,Lanzhou 730000,China

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Abstract：
The α-decay lifetimes of the newly synthesized superheavy elements are calculated using the α-cluster model and the results are in good agreement with experimental data. This indicates the reliability of the α-cluster model. The theoretical lifetimes based on the Hartree-Fock nuclear mass table are also calculated, which are useful for further theoretical and experimental researches on superheavy nuclei. We have also analyzed the α-decay energies, the separation energies of the last two neutrons and the separation energies of the last two protons of the superheavy nuclei. The shell effect at Z=114 and N=184 is discussed.

References

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XU Chang and REN Zhong-Zhou. Study on the α-Decay Lifetimes of Superheavy Elements[J]. Chinese Physics C, 2003, 27(12): 1089-1094.

XU Chang and REN Zhong-Zhou. Study on the α-Decay Lifetimes of Superheavy Elements[J]. Chinese Physics C, 2003, 27(12): 1089-1094. shu

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Received: 2003-04-21
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study on the α-Decay Lifetimes of Superheavy Elements

XU Chang
REN Zhong-Zhou ^,

Corresponding author: REN Zhong-Zhou,

Department of Physics,Nanjing University,Nanjing 210008,China2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator,Lanzhou 730000,China

Received Date: 2003-04-21
Accepted Date: 1900-01-01
Available Online: 2003-12-05

Abstract: The α-decay lifetimes of the newly synthesized superheavy elements are calculated using the α-cluster model and the results are in good agreement with experimental data. This indicates the reliability of the α-cluster model. The theoretical lifetimes based on the Hartree-Fock nuclear mass table are also calculated, which are useful for further theoretical and experimental researches on superheavy nuclei. We have also analyzed the α-decay energies, the separation energies of the last two neutrons and the separation energies of the last two protons of the superheavy nuclei. The shell effect at Z=114 and N=184 is discussed.