Yrast Band in <sup>122</sup>I and Band Termination

LIU Gongye (刘弓冶); LI Li (李黎); LI Xianfeng (李险峰); MA Yingjun (马英君); ZHAO Yanxin(赵延新); YANG Dong (杨东); LI Congbo (李聪博); MA Keyan (马克岩); YU Deyang (于德洋); YANG Yanji (杨彦佶); LU Jingbin (陆景彬); ZHU Lihua; et al

doi:10.1088/1009-0630/14/5/17

Plasma Science and Technology > 2012 > 14(5): 412-414. > DOI: 10.1088/1009-0630/14/5/17

LIU Gongye (刘弓冶), LI Li (李黎), LI Xianfeng (李险峰), MA Yingjun (马英君), ZHAO Yanxin(赵延新), YANG Dong (杨东), LI Congbo (李聪博), MA Keyan (马克岩), YU Deyang (于德洋), YANG Yanji (杨彦佶), LU Jingbin (陆景彬), ZHU Lihua, et al. Yrast Band in ¹²²I and Band Termination[J]. Plasma Science and Technology, 2012, 14(5): 412-414. DOI: 10.1088/1009-0630/14/5/17

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Yrast Band in ¹²²I and Band Termination

Department of Physics, Jilin University, Changchun 130012, China 2 .China Institute of Atomic Energy, Box 275-10, Beijing 102413, China

Funds: Supported by National Natural Science Foundation of China (No.10675053,10475033), National Basic Research Program of China ( No.2007CB815005)

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Received Date: May 16, 2011

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Abstract

Abstract

High spin states of the odd-odd nucleus ¹²²I have been investigated via the fusion-evaporation reaction ¹¹⁶Cd(11B,5n) at a beam energy of 68 MeV. The yrast band is extended up to I^π = (29⁺). The band termination at I^π = (22⁺) reported in previous studies is confirmed and interpreted as arising from a shape change from collective prolate to noncollective oblate according to Total-Routhian-Surface (TRS) calculations. In addition, the I^π = (29⁺) state is assigned to the h11/2??h11/2 configuration corresponding to the full alignment of all valance nucleons outside the semi-closed shell.
- band structure,
- odd-odd nucleus,
- band termination,
- full alignment

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