超重核的基态性质

裴俊琛; 许甫荣; 吴哲英; 赵恩广

doi:10.11804/NuclPhysRev.20.02.116

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超重核的基态性质

裴俊琛, 许甫荣, 吴哲英, 赵恩广

文章导航 > 原子核物理评论 > 2003 > 20(2): 116-120

裴俊琛, 许甫荣, 吴哲英, 赵恩广. 超重核的基态性质[J]. 原子核物理评论, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

引用本文:

裴俊琛, 许甫荣, 吴哲英, 赵恩广. 超重核的基态性质[J]. 原子核物理评论, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

PEI Jun-chen, XU Fu-rong, WU Zhe-ying, ZHAO En-guang. Ground-state Properties of Superheavy Nuclei[J]. Nuclear Physics Review, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

Citation:

PEI Jun-chen, XU Fu-rong, WU Zhe-ying, ZHAO En-guang. Ground-state Properties of Superheavy Nuclei[J]. Nuclear Physics Review, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

超重核的基态性质

doi: 10.11804/NuclPhysRev.20.02.116

兰州重离子加速器国家实验室原子核理论中心; 北京大学物理学院技术物理系; 中国科学院理论物理研究所甘肃兰州 730000;

Ground-state Properties of Superheavy Nuclei

Center of Theoretical Nuclear Physics; National Laboratory of Heavy Ion Accelerator of Lanzhou; Lanzhou 730000; China; Department of Technical Physics; School of Physics; Peking University; Beijing 100871; Institute of Theoretical Physics; Chinese Academy of Sciences; Beijing 100080; China

摘要: 用Skyrme Hartree Fock+BCS方法计算了超重核的基态性质,讨论了结合能、α衰变、形变、壳结构和自发裂变等问题.计算得到的结合能较好地反映了实验测量值,α衰变能与实验值符合很好.发现基本上有两种类型的超重核形变:在²⁷⁰108核附近的β2≈0.2的长椭球形变和在²⁹⁸114核附近的近球形形变.单粒子能级分布计算表明:在质子Z=108和中子N=162存在变形壳,在质子Z=114和中子N=184存在球形壳.用得到的α衰变能和Viola Seaborg公式估算了α衰变半寿命,能合理地符合实验测量值. The groundstate properties of superheavy nuclei are investigated using the SkyrmeHartreeFock model. The pairing correlation is treated by the BCS method with the pairing δ force. Binding energies, α decays, spontaneous fissions, shell structures and deformations are discussed. Our calculations reproduce experimential binding energies and α decay energies.It is found that superheavy nuclei can be grouped with two kinds of deformations: i) well deformed prolate shapes (β2≈0.2) around ²⁷⁰108...
- 超重核 /
- Skyrme-Hartree-Fock理论 /
- 基态性质 /
- 衰变
Abstract: The groundstate properties of superheavy nuclei are investigated using the SkyrmeHartreeFock model. The pairing correlation is treated by the BCS method with the pairing δ force. Binding energies, α decays, spontaneous fissions, shell structures and deformations are discussed. Our calculations reproduce experimential binding energies and α decay energies.It is found that superheavy nuclei can be grouped with two kinds of deformations: i) well deformed prolate shapes (β2≈0.2) around ²⁷⁰108...
- superheavy nucleus /
- Skyrme-Hartree-Fock /
- ground-state property /
- decay

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超重核的基态性质

doi: 10.11804/NuclPhysRev.20.02.116

兰州重离子加速器国家实验室原子核理论中心; 北京大学物理学院技术物理系; 中国科学院理论物理研究所甘肃兰州 730000;

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2003-06-20

关键词:

超重核 /

Skyrme-Hartree-Fock理论 /

基态性质 /

衰变

摘要: 用Skyrme Hartree Fock+BCS方法计算了超重核的基态性质,讨论了结合能、α衰变、形变、壳结构和自发裂变等问题.计算得到的结合能较好地反映了实验测量值,α衰变能与实验值符合很好.发现基本上有两种类型的超重核形变:在²⁷⁰108核附近的β2≈0.2的长椭球形变和在²⁹⁸114核附近的近球形形变.单粒子能级分布计算表明:在质子Z=108和中子N=162存在变形壳,在质子Z=114和中子N=184存在球形壳.用得到的α衰变能和Viola Seaborg公式估算了α衰变半寿命,能合理地符合实验测量值. The groundstate properties of superheavy nuclei are investigated using the SkyrmeHartreeFock model. The pairing correlation is treated by the BCS method with the pairing δ force. Binding energies, α decays, spontaneous fissions, shell structures and deformations are discussed. Our calculations reproduce experimential binding energies and α decay energies.It is found that superheavy nuclei can be grouped with two kinds of deformations: i) well deformed prolate shapes (β2≈0.2) around ²⁷⁰108...

English Abstract

裴俊琛, 许甫荣, 吴哲英, 赵恩广. 超重核的基态性质[J]. 原子核物理评论, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

引用本文:

裴俊琛, 许甫荣, 吴哲英, 赵恩广. 超重核的基态性质[J]. 原子核物理评论, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

PEI Jun-chen, XU Fu-rong, WU Zhe-ying, ZHAO En-guang. Ground-state Properties of Superheavy Nuclei[J]. Nuclear Physics Review, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116

Citation:

PEI Jun-chen, XU Fu-rong, WU Zhe-ying, ZHAO En-guang. Ground-state Properties of Superheavy Nuclei[J]. Nuclear Physics Review, 2003, 20(2): 116-120. doi: 10.11804/NuclPhysRev.20.02.116