New high spin level scheme of ^(87)Sr  

作　　者：李红伟 陆景彬 李广生 郑云 姚顺和 吴晓光 贺创业 夏清良 刘嘉健 李聪博 胡世鹏 汪金龙 吴义恒 罗朋威 马克岩 徐川 孙君杰 

机构地区：[1]College of Physics, Jilin University [2]China Institute of Atomic Energy [3]College of Physics and Technology, Shenzhen University [4]School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University

出　　处：《Chinese Physics C》2014年第7期30-33,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10927507,11075214,10675171,11175259 and 11075064)

摘　　要：High spin states of the odd-A STSr were populated by the fusion-evaporation reaction ^82Se（^9Be,4n） u. br at a beam energy of 46 MeV. Excited levels of SrSr have been extended up to an excitation energy of 7.4 MeV at spin 31/2h. The coupling of a g9/2 neutron hole to the yrast states of the SSSr core can account for the low-lying states in STSr. The structure of the higher spin states is discussed by analogy with those of the neighboring odd-A N=49 isotones and possible configurations are proposed.High spin states of the odd-A STSr were populated by the fusion-evaporation reaction ^82Se（^9Be,4n） u. br at a beam energy of 46 MeV. Excited levels of SrSr have been extended up to an excitation energy of 7.4 MeV at spin 31/2h. The coupling of a g9/2 neutron hole to the yrast states of the SSSr core can account for the low-lying states in STSr. The structure of the higher spin states is discussed by analogy with those of the neighboring odd-A N=49 isotones and possible configurations are proposed.

关 键 词：high spin state fusion-evaporation reaction N=49 isotone 

分 类 号：O571.2[理学—粒子物理与原子核物理]