^(205)Po激发态研究  

Excited States in ^(205)Po

作　　者：李金泽 郑云[1] 李聪博[1] 李天晓 吴晓光[1] 吴鸿毅 袁岑溪 贺子阳 洪锐 李韵秋 郑敏 赵子豪 郭冰[1] 贺创业[1] 刘伏龙 邱奕嘉 李广顺[4] 柳敏良[4] 周小红[4] 张玉虎[4] 王守宇 王硕 竺礼华[6,7] LI Jinze;ZHENG Yun;LI Congbo;LI Tianxiao;WU Xiaoguang;WU Hongyi;YUAN Cenxi;HE Ziyang;HONG Rui;LI Yunqiu;ZHENG Min;ZHAO Zihao;GUO Bing;HE Chuangye;LIU Fulong;QIU Yijia;LI Guangshun;LIU Minliang;ZHOU Xiaohong;ZHANG Yuhu;WANG Shouyu;WANG Shuo;ZHU Lihua(China Institute of Atomic Energy,Beijing 102413,China;Sino-French Institute of Nuclear Engineering and Technology,Sun Yat-Sen University,Guangzhou 510275,China;College of Physics,Jilin University,Changchun 130015,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Physics,Shandong University,Weihai 264209,Shandong,China;School of Physics and Nuclear Engineering,Beihang University,Beijing 100191,China;College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,Guangdong,China)

机构地区：[1]中国原子能科学研究院,北京102413 [2]中山大学中法核工程与技术学院,广东珠海519082 [3]吉林大学物理学院,长春130015 [4]中国科学院近代物理研究所,兰州730000 [5]山东大学(威海)物理学院,山东威海264209 [6]北京航空航天大学物理科学与核能工程学院,北京100191 [7]深圳大学物理与光电工程学院,广东深圳5180603

出　　处：《原子核物理评论》2024年第1期239-243,共5页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(U2167201,U2167202,11975315,U1932209)。

摘　　要：本工作利用重离子熔合蒸发反应^(196)Pt(13C,4n)^(205)Po布居了205Po核的高自旋态,^(13)C束流能量为72MeV。扩展了^(205)Po的能级纲图,新建了3个退激序列,新发现了19条射线。^(203.205.207)Po的晕态结构与大规模壳模型的计算结果进行了比较,壳模型计算使用的组态空间包含相同的质子和中子轨道,包括Oh_(g/2),1f_(s/2),2p_(3/2),2p_(1/2),1g_(g/2)。理论计算结果很好地再现了实验数据。High-spin states in ^(205)Po have been investigated by using in-beamγray spectroscopy with the ^(196)Pt(^(13)C,4n)^(205)Po reaction at a beam energy of 72 MeV.The previously known level scheme has been extended,and 3 new decay sequence have been established by adding nineteen newγrays.The yrast level structures in ^(203.205.207)Po are compared with large-scale shell model calculations performed in a configuration space with the same proton and neutron orbits,which are 0h_(9/2),1f_(5/2),2p_(3/2),2p_(1/2),1g_(9/2).The calculated results are in reasonable agreement with experimental data.

关 键 词：重离子熔合蒸发反应 高自旋态 大规模壳模型 

分 类 号：O571.23[理学—粒子物理与原子核物理]