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重离子熔合反应形成超重核的截面研究
引用本文:李文飞,李剑锋,徐瑚珊,左维,李君清,王楠,赵恩广.重离子熔合反应形成超重核的截面研究[J].原子核物理评论,2003,20(2):111-115.
作者姓名:李文飞  李剑锋  徐瑚珊  左维  李君清  王楠  赵恩广
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; 甘肃兰州730000; 2中国科学院近代物理研究所; 甘肃兰州730000; 3中国科学院理论物理所; 北京 100080;
基金项目:国家自然科学基金资助项目(10175082,10235020,10047001),国家重点研究规划资助项目(G2000077400),中国科学院知识创新工程资助项目(KJCX2 SW N02),中国科学院百人计划资助项目,科技部基础研究重大项目前期研究专项基金资助项目
摘    要:在双核系统框架下,通过数值法解主方程计算了双核间的核子跃迁全熔合几率.两碰撞核内部激发能由相对运动能损提供,因此能够将核子转移过程与相对运动耦合起来.对一些以Pb为靶的形成超重核的冷熔合反应,计算了最佳激发能、形成双核系统的俘获截面、复合核形成几率及存活几率等,所得到的形成超重核蒸发剩余截面与已知实验值符合较好. In the concept of Dinuclear system (DNS) the complete fusion probability of two touch nuclei via nucleon transfer is described by numerically solving the Master equation. The excitation energy of two colliding nuclei is supplied by the energy dissipation of their relative motion, thus the nucleon transfer process and the relative motion are coupled. For Pb based cold fusion reactions to form super heavy nuclei, the optimal excitation energy, the capture cross section to form a DNS ...

关 键 词:主方程    超重核    俘获截面    全熔合几率    存活几率
文章编号:1007-4627(2003)02-0111-05
收稿时间:1900-01-01
修稿时间:2003年1月25日

Formation Cross Sections of Super Heavy Nuclei by Heavy Ion Fusion Reactions
Institution:(1 Center of Theoretical Physics; National Laboratory of Heavy Ion Accelerator of Lanzhou; Lanzhou 730000; China; 2 Institute of Modern Physics; Chinese Academy of Sciences; China3 Institute of Theoretical Physics; Beijing 100080; China;
Abstract:In the concept of Dinuclear system (DNS) the complete fusion probability of two touch nuclei via nucleon transfer is described by numerically solving the Master equation. The excitation energy of two colliding nuclei is supplied by the energy dissipation of their relative motion, thus the nucleon transfer process and the relative motion are coupled. For Pb based cold fusion reactions to form super heavy nuclei, the optimal excitation energy, the capture cross section to form a DNS, the compound nuclear ...
Keywords:Master equation  super heavy nucleus  capture cross-section  complete fusion probability  survival probability
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