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Fission Barrier for 240Pu in the Quadrupole Constrained Relativistic Mean Field Approach |
| Lü Hong-Feng;GENG Li-Sheng;MENG Jie |
| 1School of Physics, Peking University, Beijing 100871
2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 |
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| Cite this article: |
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Lü Hong-Feng, GENG Li-Sheng, MENG Jie 2006 Chin. Phys. Lett. 23 2940-2943 |
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Abstract The fission barrier for 240Pu is investigated beyond the second saddle point in the potential energy surface by the constrained relativistic mean field method with the newly proposed parameter set PK1. The microscopic correction for the centre-of-mass motion is essential to provide the correct potential energy surface. The shell effects that stabilize the nuclei against the fission is also investigated by the Strutinsky method. The shapes for the ground state, fission isomer and saddle-points, etc, are studied in detail.
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| Keywords:
24.75.+i
31.50.-x
21.10.-k
21.10.Dr
21.10.Pc
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Published: 01 November 2006
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| PACS: |
24.75.+i
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(General properties of fission)
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31.50.-x
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(Potential energy surfaces)
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21.10.-k
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(Properties of nuclei; nuclear energy levels)
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21.10.Dr
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(Binding energies and masses)
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21.10.Pc
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(Single-particle levels and strength functions)
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