^(95)Nb高自旋态研究  

High-spin States in the Nucleus ^(95)Nb

作　　者：洪锐 李聪博[2] 李会东 郑云[2] 吴晓光[2] 李天晓 李韵秋 吴鸿毅 郑敏 赵子豪 贺子阳 李金泽 李广顺[4] 郭成宇 倪磊 周振翔 贺创业[2] 刘伏龙 周小红[4] 柳敏良[4] 张玉虎[4] 王守宇 王硕 竺礼华[7] HONG Rui;LI Congbo;LI Huidong;ZHENG Yun;WU Xiaoguang;LI Tianxiao;LI Yunqiu;WU Hongyi;ZHENG Min;ZHAO Zihao;HE Ziyang;LI Jinze;LI Guangshun;GUO Chengyu;NI Lei;ZHOU Zhenxiang;HE Chuangye;LIU Fulong;ZHOU Xiaohong;LIU Minliang;ZHANG Yuhu;WANG Shouyu;WANG Shuo;ZHU Lihua(School of Science,Xihua University,Chengdu 610039,China;China Institute of Atomic Energy,Beijing 102413,China;College of Physics,Jilin University,Changchun 130023,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100091,China;School of Physics,Shandong University(Weihai),Weihai 264209,Shandong,China;School of Physics and Nuclear Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]西华大学理学院,成都610039 [2]中国原子能科学研究院,北京102413 [3]吉林大学物理学院,长春130023 [4]中国科学院近代物理研究所,兰州730000 [5]北京大学物理学院核物理与核技术国家重点实验室,北京100091 [6]山东大学(威海)物理学院,山东威海264209 [7]北京航空航天大学物理科学与核能工程学院,北京100191

出　　处：《原子核物理评论》2024年第1期244-249,共6页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(11975315,U1932209,U2167202,U2167201);稳定支持基础科研计划资助项目。

摘　　要：通过重离子熔合蒸发反应^(82)Se(^(18)O,p4n)^(95)Nb,布居了^(95)Nb的高自旋态。利用多探头中国联合伽马探测阵列进行了在束测量,研究了95Nb核的高自旋态能级结构。基于-符合关系扩展了95Nb的能级纲图,发现了25条新的跃迁和21条新的能级,并调整了部分能级的摆放位置。将新的能级结构与壳模型计算进行了比较和讨论。结果表明,要正确的描述^(95)Nb核的高自旋态(自旋值大于39/2)能级结构,应考虑质子跨越38子壳f_(s/2)→g_(9/2)核心激发。High-spin level structure of ^(95)Nb has been investigated using the multi-detector array of the conjoint gamma array in China via the ^(82)Se(^(18)O,p4n)^(95)Nb.Based onγ-γcoincidence relationships,the level scheme of 95Nb has been modified and extended with 25 newγrays and 15 new levels.The new level structure of ^(95)Nb has been compared with the shell model calculations.It is suggested that the proton core excitation(f_(5/2)→g_(9/2))across Z=38 sub-shell should be taken into account in order to adequately describe the high-spin level structure in 95Nb above spin of 39/2.

关 键 词：高自旋态 能级纲图 线极化测量 壳模型 

分 类 号：O571.23[理学—粒子物理与原子核物理]