Two-proton radioactivity of the excited state within the Gamow-like and modified Gamow-like models  

作　　者：De-Xing Zhu Yang-Yang Xu Hong-Ming Liu Xi-Jun Wu Biao He Xiao-Hua Li 

机构地区：[1]School of Nuclear Science and Technology,University of South China,Hengyang 421001,China [2]Institute of Modern Physics,Fudan University,Shanghai 200433,China [3]School of Math and Physics,University of South China,Hengyang 421001,China [4]College of Physics and Electronics,Central South University,Changsha 410083,China [5]National Exemplary Base for International Sci&Tech.Collaboration of Nuclear Energy and Nuclear Safety,University of South China,Hengyang 421001,China [6]Cooperative Innovation Center for Nuclear Fuel Cycle Technology&Equipment,University of South China,Hengyang 421001,China [7]Key Laboratory of Low Dimensional Quantum Structures and Quantum Control,Hunan Normal University,Changsha 410081,China

出　　处：《Nuclear Science and Techniques》2022年第10期1-10,共10页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.12175100 and 11975132);the Construct Program of the Key Discipline in Hunan Province;the Research Foundation of the Education Bureau of Hunan Province,China(No.18A237);the Natural Science Foundation of Hunan Province,China(No.2018JJ2321);the Innovation Group of Nuclear and Particle Physics in USC;the Opening Project of the Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment,University of South China(No.2019KFZ10)。

摘　　要：In this study,we systematically investigated the two-proton(2p)radioactivity half-lives from the excited state of nuclei near the proton drip line within the Gamowlike model(GLM)and modified Gamow-like model(MGLM).The calculated results were highly consistent with the theoretical values obtained using the unified fission model[Chin.Phys.C 45,124105(2021)],effective liquid drop model,and generalized liquid drop model[Acta Phys.Sin 71,062301(2022)].Furthermore,utilizing the GLM and MGLM,we predicted the 2p radioactivity halflives from the excited state for some nuclei that are not yet available experimentally.Simultaneously,by analyzing the calculated results from these theoretical models,it was found that the half-lives are strongly dependent on Qand l.

关 键 词：2p radioactivity Gamow-like model Halflife Excited state 

分 类 号：O571.422[理学—粒子物理与原子核物理]