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Ground State Properties of New Element Z=113 and Its Alpha Decay Chain |
| TAI Fei1;CHEN Ding-Han1;XU Chang1;REN Zhong-Zhou1,2 |
| 1Department of Physics, Nanjing University, Nanjing 210093
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000 |
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| Cite this article: |
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TAI Fei, CHEN Ding-Han, XU Chang et al 2005 Chin. Phys. Lett. 22 843-845 |
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Abstract We investigate the ground state properties of the new element 278113 and of the α-decay chain with different models, where the new element Z=113 has been produced at RIKEN in Japan by cold-fusion reaction [Morita et al. J. Phys. Soc. Jpn. 73(2004)2593]. The experimental decay energies are reproduced by the deformed relativistic mean-field model, by the Skyrme--Hartree--Fock (SHF) model, and by the macroscopic-microscopic model. Theoretical half-lives also reasonably agree with the data. Calculations further show that prolate deformation is important for the ground states of the nuclei in the α-decay chain of 278113. The common points and differences among different models are compared and discussed.
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| Keywords:
21.60.Jz
27.90.+b
21.10.Dr
21.10.Tg
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Published: 01 April 2005
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| PACS: |
21.60.Jz
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(Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations))
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27.90.+b
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(A ≥ 220)
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21.10.Dr
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(Binding energies and masses)
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21.10.Tg
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(Lifetimes, widths)
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