High-k Structures in (124)～Cs  

作　　者：杨东 陆景彬 刘运祚 马克岩 王辉东 王烈林 刘弓冶 李黎 马英君 竺礼华 吴晓光 李广生 贺创业 

机构地区：[1]Department of Physics,Jilin University [2]Southwest University of Science and Technology [3]China Institute of Atomic Energy

出　　处：《Plasma Science and Technology》2012年第7期607-609,共3页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.10105003,11075064,11075214 and 10927507);the Specialized Research Fund for the Doctoral Programme of Higher Education of China(No.20050183008);the National Basic Research Programme of China(No.2007CB815005)

摘　　要：High spin states in the odd-odd nucleus 124Cs have been investigated through the fusion-evaporation reaction 116Sn（11B, 3n）l24 Cs with a beam energy of 45 MeV. A new rotational band is established and assigned as the high-k configuration of πg9/2140419/2＋ ⊙vh 11/2[523]7/2-. Some structures linking to this band have also been observed. According to the results of the excitation energy systematics, the lowest level of this band is assigned as 9-, and the 8- isomer bandhead has not been observed. Another isomer with a half life of 6.3 s has also been observed with its new decay paths established, Its excitation energy is raised by 79 keV, but its Iπ is not changed.High spin states in the odd-odd nucleus 124Cs have been investigated through the fusion-evaporation reaction 116Sn（11B, 3n）l24 Cs with a beam energy of 45 MeV. A new rotational band is established and assigned as the high-k configuration of πg9/2140419/2＋ ⊙vh 11/2[523]7/2-. Some structures linking to this band have also been observed. According to the results of the excitation energy systematics, the lowest level of this band is assigned as 9-, and the 8- isomer bandhead has not been observed. Another isomer with a half life of 6.3 s has also been observed with its new decay paths established, Its excitation energy is raised by 79 keV, but its Iπ is not changed.

关 键 词：odd-odd nucleus rotational band high-k structure excitation energy system-atics ISOMER 

分 类 号：O571.3[理学—粒子物理与原子核物理]