| 基于RMF理论对超重核结构和合成以及滴线外核的研究 |
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| 引用本文： | 孟杰,张炜,张焕乔. 基于RMF理论对超重核结构和合成以及滴线外核的研究[J]. 原子核物理评论, 2003, 20(2): 137-147. DOI: 10.11804/NuclPhysRev.20.02.137 |
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| 作者姓名： | 孟杰 张炜 张焕乔 |
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| 作者单位： | 1 兰州重离子加速器国家实验室原子核理论中心; 2 北京大学物理学院; 3 中国科学院理论物理研究所;4 中国原子能科学研究院; |
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| 基金项目： | 国家重点基础研究发展规划资助项目(G2000077407)，国家自然科学基金资助项目(10025522,10047001,19935030) |
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| 摘 要： | 总结和回顾了超重核结构和反应研究的历史和现状,利用形变约束的相对论平均场理论系统计算了实验观测到的Z=102—112号元素的能量随形变的变化,得到了这些核素的基态和鞍点性质,利用Strutinsky壳修正方法研究了壳效应对这些核素的影响.利用所得到的结构信息,计算了相应的冷熔合反应的截面,给出了与实验相仿的结果,得到Z=118号元素的合成截面为23pb,比宏观模型的结果小20倍.讨论了相关物理量对反应截面的影响.同时,还给出了相对论连续谱Hartree Bogoliubov(RCHB)理论对滴线外核1800Sn的描述. The studieson structure and reaction for superheavy elements are reviewed. Based on constrained relativistic mean field(CRMF) theory, binding energiesof elements from Z=102 to Z=112, which can be measured experimentally, as a function of deformation arecalculated, and the properties of equilibrium and saddle point of these nuclides are obtained. Using the single particle levels based on CRMF, the shell effects are obtained with Structinsky method. The cross sections of the cold fusion are est...
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| 关 键 词： | 超重元素 滴线外核 相对论平均场 冷熔合反应截面 壳效应 |
| 文章编号： | 1007-4627(2003)02-013711 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2003-01-25 |
Structure and Synthesis for Superheavy Element Based on Relativistic Mean Field Theory and Research on Nuclide beyond Drip-line |
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| MENG Jie,ZHANG Wei. Structure and Synthesis for Superheavy Element Based on Relativistic Mean Field Theory and Research on Nuclide beyond Drip-line[J]. Nuclear Physics Review, 2003, 20(2): 137-147. DOI: 10.11804/NuclPhysRev.20.02.137 |
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| Authors: | MENG Jie ZHANG Wei |
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| Affiliation: | (1 Center of Theoretical Nuclear Physics; National Laboratory of Heavy Ion Accelerator of Lanzhou; Lanzhou 730000; China; 2 School of Physics; Peking University; Beijing 100871; 3 Institute of Theoretical Physics; Chinese Academy of Science; Beijing 100080; 4China Instituteof Atomic Energy; Beijing 102413; China); |
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| Abstract: | The studieson structure and reaction for superheavy elements are reviewed. Based on constrained relativistic mean field(CRMF) theory, binding energiesof elements from Z=102 to Z=112, which can be measured experimentally, as a function of deformation arecalculated, and the properties of equilibrium and saddle point of these nuclides are obtained. Using the single particle levels based on CRMF, the shell effects are obtained with Structinsky method. The cross sections of the cold fusion are est... |
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| Keywords: | superheavy nucleus nucleus beyond drip line relativistic mean field cross section for cold fusion shell effect |
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