Half-Lives of Low-Lying Isomeric States in ^(169)Ta  

作　　者：ZHANG Yu-hu ZHAO Qing-zhong ZHU Shao-fei XU Hu-shan ZHOU Xiao-hong GUO Ying-xiang LEI Xiang-guo LU Jun GOU Quan-bu LIU Zhong JIN Han-juan LUO Yi-xiao SUN Xiang-fu ZHU Yong-tai 张玉虎;赵庆中;朱少飞;徐瑚珊;周小红;郭应祥;雷祥国;卢俊;苟全补;刘忠;金寒娟;罗亦孝;孙相富;诸永泰(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000)

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000

出　　处：《Chinese Physics Letters》1998年第2期92-94,共3页中国物理快报（英文版）

基　　金：Supported by the State Education Committee of China;the National Natural Science Foundation of China under Grant No.19605008.

摘　　要：Two low-lying isomeric states in 169Ta have been identified via ^(159)Tb(l6O,6nγ)^(169)Ta reaction.Their half-lives are measured to be 28±5ns for the 9/2^(-)level and 17±4 ns for the 5/2^(-)level by using the delayedγ-γcoincidence method.These two isomeric states are considered to be the bandheads with 9/2-[514]and 1/2-[541]configurations,respectively.Possible neutron quasiparticle configuration for the ground state of ^(169)W is discussed.

关 键 词：reaction. method. 

分 类 号：O57[理学—粒子物理与原子核物理]