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
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
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.
Lü Hong-Feng;GENG Li-Sheng;MENG Jie. Fission Barrier for 240Pu in the Quadrupole Constrained Relativistic Mean Field Approach[J]. 中国物理快报, 2006, 23(11): 2940-2943.
Lü Hong-Feng, GENG Li-Sheng, MENG Jie. Fission Barrier for 240Pu in the Quadrupole Constrained Relativistic Mean Field Approach. Chin. Phys. Lett., 2006, 23(11): 2940-2943.
2006, Vol. 23 
