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丰质子核29S的β延迟γ衰变研究

β-delayed γ Decay of the Proton-rich Nucleus 29S

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【作者】 查思贤李金海覃淑炼常志芳徐新星孙立杰刘嘉健袁岑溪林承键李晓菁李智焕吴鸿毅李朋杰王建松杨彦云梁鹏飞简豪高雨枫范锐戴凡超朱浩钒王东玺蓝乙华马朋段芳芳高志浩胡强白真马军兵王建国钟福鹏武晨光罗迪雯蒋颖刘洋侯东升李忍马南茹马维虎石国柱余功明Patel Dipika金树亚王煜峰余悦超胡力元王翔臧宏亮赵青青杨磊温培威杨峰贾会明张高龙潘敏汪小雨孙浩瀚徐瑚珊周小红张玉虎胡正国王猛陈若富柳敏良杨维青

【Author】 ZHA Sixian;LI Jinhai;QIN Shulian;CHANG Zhifang;XU Xinxing;SUN Lijie;LIU Jiajian;YUAN Cenxi;LIN Chengjian;Jenny Lee;LI Zhihuan;WU Hongyi;LI Pengjie;WANG Jiansong;YANG Yanyun;LIANG Pengfei;JIAN Hao;GAO Yufeng;FAN Rui;DAI Fanchao;ZHU Haofan;WANG Dongxi;LAM Yihua;MA Peng;DUAN Fangfang;GAO Zhihao;HU Qiang;BAI Zhen;MA Junbing;WANG Jianguo;ZHONG Fupeng;WU Chenguang;LUO Diwen;JIANG Ying;LIU Yang;HOU Dongsheng;LI Ren;MA Nanru;MA Weihu;SHI Guozhu;YU Gongming;Patel Dipika;JIN Shuya;WANG Yufeng;YU Yuechao;HU Liyuan;WANG Xiang;ZANG Hongliang;ZHAO Qingqing;YANG Lei;WEN Peiwei;YANG Feng;JIA Huiming;ZHANG Gaolong;PAN Min;WANG Xiaoyu;SUN Haohan;XU Hushan;ZHOU Xiaohong;ZHANG Yuhu;HU Zhengguo;WANG Meng;CHEN Ruofu;LIU Minliang;YANG Weiqing;Institute of Modern Physics, Chinese Academy of Sciences;School of Nuclear Science and Technology, University of Chinese Academy of Sciences;Department of Physics, University of Hong Kong;Department of Nuclear Physics, China Institute of Atomic Energy;Advanced Energy Science and Technology Guangdong Laboratory;School of Physics and Astronomy, Shanghai Jiao Tong University;Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University;College of Physics and Technology, Guangxi Normal University;School of Physics, Peking University;School of Science, Huzhou University;School of Nuclear Science and Technology, Lanzhou University;Institute of Modern Physics, Fudan University;School of Physics and Astronomy, Yunnan University;Fundamental Science on Nuclear Safety and Simulation Technology Laboratory,Harbin Engineering University;School of Physics and Nuclear Energy Engineering, Beihang University;

【通讯作者】 徐新星;

【机构】 中国科学院近代物理研究所中国科学院大学核科学与技术学院香港大学物理系中国原子能科学研究院核物理研究所先进能源科学与技术广东省实验室上海交通大学物理与天文学院中山大学中法核工程与技术学院广西师范大学物理科学与技术学院北京大学物理学院湖州师范学院理学院兰州大学核科学与技术学院复旦大学现代物理研究所云南大学物理与天文学院哈尔滨工程大学核安全与仿真技术国防重点学科实验室北京航空航天大学物理科学与核能工程学院

【摘要】 在兰州重离子研究装置的放射性束流线(HIRFL-RIBLL1)上,使用由三块双面硅微条探测器及环绕它的五个高纯锗探测器组成的探测器阵列,对丰质子核29SS的β延迟γ衰变性质展开研究。本次实验获得了29SS的半衰期,为183(4) ms。首次实现了29S的β延迟γ测量,准确地获得了4条γ射线,得到了通过β衰变布居到子核29P低激发态的衰变分支比,并由此建立了29SS的部分衰变纲图。基于实验数据,研究了29SS→29SP/29SAl→29SSi镜像衰变过程中的同位旋对称性破缺。

【Abstract】 The β-delayed γ decay properties of proton-rich nucleus 29S were studied with three double-sided silicon strip detectors surrounded by five high-purity germanium detectors on the HIRFL-RIBLL1 facility. The most precise half-life of 29S was obtained to be 183(4) ms in this experiment. The measurements of β-delayed γ rays of 29S were achieved for the first time and four β-γ rays were observed accurately. The β-decay branching ratio for the low-lying excited states of 29P was determined and a partial decay scheme of 29S was established. Based on experimental data, the isospin symmetry breaking in the mirror decay process of the 29S→29P/29Al→29Si was studied.

【基金】 中国科学院战略性先导科技专项资助(XDB34010300);国家自然科学基金资助项目(12022501,U1932206,12105329)~~
  • 【文献出处】 原子核物理评论 ,Nuclear Physics Review , 编辑部邮箱 ,2023年03期
  • 【分类号】O571
  • 【下载频次】1
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