作者机构：
[季选韬; 罗思远; 朱坤; 彭肖宇; 祝锦; 肖敏; 罗凤娇; 王晓冬] School of Nuclear Science and Nuclear Technology, University of South China, Hengyang;421001, China;[季选韬; 罗思远; 朱坤; 彭肖宇; 祝锦; 肖敏; 罗凤娇; 王晓冬] 421001, China
作者机构：
Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, China;State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Beijing, China;School of Physical Science, University of Chinese Academy of Sciences, Beijing, China;[Xin Ling] School of Nuclear Science and Technology, University of South China, Hengyang, China;[Yuanxue Gao; Zhihang Zhu] Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, China<&wdkj&>State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Beijing, China<&wdkj&>School of Physical Science, University of Chinese Academy of Sciences, Beijing, China
通讯机构：
[Xin Ling] S;School of Nuclear Science and Technology, University of South China, Hengyang, China
摘要：
<jats:title>Abstract</jats:title>
<jats:p>In the present work, we systematically study the <jats:italic>α-</jats:italic>decay half-lives of uranium (<jats:italic>Z</jats:italic>=92) isotopes based on the Gamow model with a screened electrostatic barrier. There are only two adjustable parameters in our model i.e. the parameter <jats:italic>g</jats:italic> and the screening parameter <jats:italic>t</jats:italic> in the Hulthen potential for considering the screened electrostatic effect of the Coulomb potential. The calculated results are in good agreement with experimental data, and the corresponding root-mean-square (rms) deviations of uranium isotopes with <jats:italic>α</jats:italic> transition orbital angular momentum <jats:italic>l</jats:italic>=0 and <jats:italic>l</jats:italic>=2 are 0.141 and 0.340, respectively. Moreover, we extend this model to predict <jats:italic>α-</jats:italic>decay half-lives of uranium isotopes whose <jats:italic>α</jats:italic> decay is energetically allowed or observed but not yet quantified in NUBASE2020. For comparison, the modified Hatsukawa formula (XLZ), the unified Royer formula (DZR), the universal decay law (UDL) and the Viola–Seaborg–Sobiczewski formula (VSS) are also used. The predictions are basically consistent with each other. Meanwhile, the results also indicate that <jats:italic>N</jats:italic>=126 shell closure is still robust at <jats:italic>Z</jats:italic>=92 and the spectroscopic factor <jats:inline-formula>
<jats:tex-math><?CDATA $ S_{\alpha} $?></jats:tex-math>
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_46_11_114103_M1.jpg" xlink:type="simple" />
</jats:inline-formula> is almost the same for uranium isotopes with the same <jats:italic>l</jats:italic>.</jats:p>
作者机构：
[Cheng, Jun-Hao; Li, Xiao-Hua] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Zhang, Zhen] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China.;[Wu, Xi-Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Chu, Peng-Cheng] Qingdao Technol Univ, Sch Sci, Qingdao 266000, Peoples R China.;[Li, Xiao-Hua] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Peoples R China.
关键词：
proton radioactivity;Skyrme;Hartree-Fock;macroscopic quantities of nuclear matter
摘要：
In this study, we systematically investigate the proton radioactivity half-lives of 33 spherical nuclei based on the relationship between Skyrme parameters and the macroscopic quantities of nuclear matter. Using the two-potential approach with the spherical Skyrme-Hartree-Fock model, the correlation between proton radioactivity half-life and the macroscopic quantities is analyzed. Moreover, we obtain a new Skyrme parameter set by fitting the two most weighted macroscopic quantities. Compared with the Skyrme parameters MSL0 and the theoretical model of proton radioactivity UDLP, the theoretical proton radioactivity half-life calculated using the new Skyrme parameter set can better reproduce the experimental data.
作者机构：
[王天石; 王宇轩; 赵鹏程; 王曦婕; 凌煜凡; 王雨晴; 朱恩平] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu;610213, China;[王天石; 王宇轩; 王曦婕; 凌煜凡; 王雨晴; 朱恩平] 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, China
作者机构：
[胡杨; 刘依诺; Zeng, Wenjie; 梁乐华; 李楚豪] School of Nuclear Science and Technology, University of South China, Hunan, Hengyang;421001, China;[胡杨; 刘依诺; Zeng, Wenjie; 梁乐华; 李楚豪] 421001, China
作者机构：
[Zhu, De-Xing; Li, Xiao-Hua; Xu, Yang-Yang] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Liu, Hong-Ming] Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China.;[Wu, Xi-Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[He, Biao] Cent South Univ, Coll Phys & Elect, Changsha 410083, Peoples R China.;[Li, Xiao-Hua] Univ South China, Natl Exemplary Base Int Sci & Tech Collaborat Nuc, Hengyang 421001, Peoples R China.
通讯机构：
[Xiao-Hua Li] S;School of Nuclear Science and Technology, University of South China, Hengyang, China<&wdkj&>National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, Hengyang, China<&wdkj&>Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China, Hengyang, China<&wdkj&>Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University, Changsha, China
作者机构：
[邱小平; 贺灿; 陈珍平; 赵鹏程] School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China;[孙征; 邵静] China Institute of Atomic Energy, Beijing, 102413, China
通讯机构：
[Qiu, X.] S;School of Nuclear Science and Technology, China
作者机构：
[倪梓宁; 于涛; 谢金森; 陈熙荣; 黄干; 陈珍平; 赵鹏程; 雷济充] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Virtual Simulation Experiment Teaching Center on Nuclear Energy and Technology, University of South China, Hengyang;[黄浩] Nuclear Reactor Operation and Application Research Sub-Institute, Nuclear Power Institute of China, Chengdu;610213, China
作者机构：
[丁天松; 颜拥军; 谢宇希; 李翔] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[丁天松; 颜拥军; 谢宇希; 李翔] 421001, China
作者机构：
[徐士坤; 于涛; 谢金森] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Hunan Engineering & Technology Research Center for Virtual Nuclear Reactor, University of South China, Hengyang;[李满仓; 王连杰] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu;610213, China
