Theoretical study on fusion dynamics and evaporation residue cross sections for superheavy elements  

作　　者：WANG Nan ZHAO Enguang ZHOU Shangui 

机构地区：[1]College of Physics,Shenzhen University [2]State Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences [3]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator

出　　处：《Nuclear Science and Techniques》2013年第5期107-112,共6页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(NSFC) projects (Nos.10975100,11275098,10979066,11275248,11175252 and 11120101005);MOST of China(No.2013CB834400); the Knowledge Innovation Project of CAS(Nos.KJCX2-EW-N01 and KJCX2-YW-N32)

摘　　要：The nuclear dynamical deformation,the fusion probability and the evaporation residue(ER) cross sections for the synthesis of superheavy nuclei are studied with the di-nuclear system model and the related dynamical potential energy surface.The intrinsic energy and the maximum dynamical deformations for48Ca+248Cm are calculated.The effect of dynamical deformation on the potential energy surface and fusion is investigated.It is found that the dynamical deformation influences the potential energy surface and fusion probability significantly.The dependence of the fusion probability on the angular momentum is investigated.The ER cross sections for some superheavy nuclei in48Ca induced reactions are calculated and it is found that the theoretical results are in good agreement with the experimental results.The nuclear dynamical deformation, the fusion probability and the evaporation residue （ER） cross sections for the synthesis of superheavy nuclei are studied with the di-nuclear system model and the related dynamical potential energy surface. The intrinsic energy and the maximum dynamical deformations for 48Ca＋248Cm are calculated. The effect of dynamical deformation on the potential energy surface and fusion is investigated. It is found that the dynamical deformation influences the potential energy surface and fusion probability significantly. The dependence of the fusion probability on the angular momentum is investigated. The ER cross sections for some superheavy nuclei in 48Ca induced reactions are calculated and it is found that the theoretical results are in good agreement with the experimental results.

关 键 词：蒸发残渣 超重元素 截面 聚变动力 超重核合成 计算结果 动态变形 势能面 

分 类 号：O571[理学—粒子物理与原子核物理]