Understanding of the dissipation mechanism in ternary fission for the system ^(197)Au+^(197)Au  

作　　者：田俊龙 李贤 吴锡真 李祝霞 晏世伟 

机构地区：[1]College of Nuclear Science and Technology, Beijing Normal University [2]Beijing Radiation Center [3]China Institute of Atomic Energy [4]Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou

出　　处：《Chinese Physics C》2009年第S1期109-112,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10475008, 10435020, 10235030, 10675172);Scientific Research Foundation for Returned Overseas Chinese Scholars, Ministry of Personnel and Ministry of Education of China (MOP2006138,MOE2005383);National Basic Research program of China (2007CB209900) and HSCC of Beijing Normal University

摘　　要：The mass number distributions of three fragments from the ternary fission of the system 197Au+197Au are reproduced rather well by using the improved quantum molecular dynamics (ImQMD) model without any adjusting parameter. It is found that the probability of ternary fission evidently depends on the incident energy and the impact parameter, and the two-body dissipation is the main mechanism responsible for the formation of the third fragment with comparable mass.The mass number distributions of three fragments from the ternary fission of the system 197Au+197Au are reproduced rather well by using the improved quantum molecular dynamics (ImQMD) model without any adjusting parameter. It is found that the probability of ternary fission evidently depends on the incident energy and the impact parameter, and the two-body dissipation is the main mechanism responsible for the formation of the third fragment with comparable mass.

关 键 词：ImQMD 197Au+197Au ternary fission two-body dissipation 

分 类 号：O571[理学—粒子物理与原子核物理]