Fission barriers with the Weizs?cker-Skyrme mass model  

作　　者：Ning Wang Min Liu 王宁;刘敏(Department of Physics,Guangxi Normal University,Guilin 541004,China;Guangxi Key Laboratory of Nuclear Physics and Technology,Guilin 541004,China)

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：《Chinese Physics C》2024年第9期164-169,共6页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12265006,U1867212);the Guangxi Natural Science Foundation(2017GXNSFGA198001)。

摘　　要：Based on the Weizsacker-Skyrme(WS4)mass model,the fission barriers of nuclei are systematically studied.Considering the shell corrections,macroscopic deformation energy,and a phenomenological residual correction,the fission barrier heights for nuclei with Z≥82 can be well described,with an rms deviation of 0.481 MeV with respect to 71 empirical barrier heights.In addition to the shell correction at the ground state,the shell correction at the saddle point and its relative value are also important for both deformed and spherical nuclei.The fission barriers for nuclei far from theβ-stability line and super-heavy nuclei are also predicted with the proposed approach.

关 键 词：fission barrier shell correction saddle point macroscopic-microscopic model 

分 类 号：O571.43[理学—粒子物理与原子核物理]