Driving potential and fission-fragment charge distributions  

作　　者：Yuan Su Min Liu Ning Wang 

机构地区：[1]Department of Physics,Guangxi Normal University,Guilin 541004,China [2]Guangxi Key Laboratory of Nuclear Physics and Technology,Guilin 541004,China

出　　处：《Communications in Theoretical Physics》2022年第9期92-97,共6页理论物理通讯（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos U1867212,11875323,12147211);Guangxi Natural Science Foundation(No.2017GXNSFGA198001)

摘　　要：We propose an efficient approach to describe the fission-fragment charge yields for actinides based on the driving potential of the fissioning system.Considering the properties of primary fission fragments at their ground states,the driving potential,which represents the potential energies of the system around scission configuration and closely relates to the yields of fragments,can be unambiguously and quickly obtained from the Skyrme energy-density functional together with the Weizs?cker-Skyrme mass model.The fission-fragment charge distributions for thermal-neutron-induced fission and spontaneous fission of a series of actinides,especially the odd-even staggering in the charge distributions,can be well reproduced.Nuclear dynamical deformations and pairing corrections of fragments play an important role in the charge distributions.

关 键 词：nuclear fission fragment charge distribution driving potential nuclear deformation energy density functional 

分 类 号：O571.43[理学—粒子物理与原子核物理]