| Fission Barrier for ^240Pu in the Quadrupole Constrained Relativistic Mean Field Approach |
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| 作者姓名： | 吕洪凤 耿立升 孟杰 |
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| 作者单位： | [1]School of Physics, Peking University, Beijing 100871 [2]Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 [3]Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10435010, 10221003, and 10447101, the Doctoral Program Foundation from the Ministry of Education of China. |
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| 摘 要： |
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| 关 键 词： | 裂变障碍 四极拘泥相对平均场 第二鞍点 原子核物理 |
| 收稿时间： | 2006-06-20 |
| 修稿时间： | 2006-06-20 |
Fission Barrier for ^240Pu in the Quadrupole Constrained Relativistic Mean Field Approach |
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| LUE Hong-Feng,GENG Li-Sheng,MENG Jie.Fission Barrier for ^240Pu in the Quadrupole Constrained Relativistic Mean Field Approach[J].Chinese Physics Letters,2006,23(11):2940-2943. |
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| Authors: | LUE Hong-Feng GENG Li-Sheng MENG Jie |
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| Affiliation: | 1.School of Physics, Peking University, Beijing 100871 ; 2.Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 ;3 .Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 |
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| Abstract: | The fission barrier for ^240pu is investigated beyond the second saddle point in the potentiM 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 essentiM 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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