Research onα-decay for the superheavy nuclei with Z=118-120

作     者：Chen He Zhong-Ming Niu Xiao-Jun Bao Jian-You Guo 何晨;牛中明;包小军;郭建友

作者机构：School of Physics and Optoelectronics EngineeringAnhui UniversityHefei 230601China Department of PhysicsHunan Normal UniversityChangsha 410081China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第5期

页      面：116-128页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：Partly supported by the National Natural Science Foundation of China(11935001,11575002) the Key Research Foundation of Education Ministry of Anhui Province(KJ2018A0028) Anhui project(Z010118169) 

主　　题：generalized liquid-drop model α-decay superheavy nuclei relativistic Hartree-Fock WS4 model 

摘      要：The generalized liquid-drop model(GLDM)with the microscopic shell correction from relativistic Hartree-Fock(RHF)calculations is used to explore theα-decay of superheavy *** known nuclei with Z=106−118 are chosen as examples for *** calculated half-lives ofα-decay agree with the experimental data better than those from the GLDM with the shell correction in the Weizsa¨cker-Skyrme ***,the influence of the decay energy Q_(α) onα-decay is *** is determined that the Q_(α) values obtained from the WS4 model with radial basis function(RBF)correction match the experimental data *** to these advantages,the GLDM with the RHF shell correction and WS4+RBF Q_(α) values is adopted to predict theα-decay lifetime for the unknown superheavy nuclei with Z=118−*** trend of the availableα-decay half-lives according to the neutron number is similar to the trends of the values from the GLDM calculation without shell correction as well as the universal decay law(UDL)***,the RHF shell correction depresses(raises)theα-decay lifetime for most nuclei with N186).In comparison with the half-lives of spontaneous fission,it can be concluded that theα-decay is dominant in the superheavy nuclei ^(281−304)118,^(284−306)119,and ^(287−308)*** results are beneficial to the exploration of superheavy nuclei in experiments.