First Observation of Signature Inversion in πh_(9/2) ■ vi_(13/2) Oblate Band in ^(190)Tl  

作　　者：Xie Chengying Zhou Xiaohong Zhang Yuhu Guo Yingxiang Lei Xiangguo Song Litao Wang Hualei Liu Minliang Zheng Yong Guo Wentao Yu Haiping Luo Peng Wen Shuxian Zhu Lihua Wu Xiaoguang 

机构地区：[1]China Institute of Atomic Energy, China.

出　　处：《近代物理研究所和兰州重离子加速器实验室年报：英文版》2004年第1期51-51,共1页IMP & HIRFL Annual Report

基　　金：Supported by NSFC(10375077 and 10221003)Major State Basic Research Development Program (TG2000077402).

摘　　要：The high-spin states of 190Tl, populated via the 160Gd(35Cl, 5n)190Tl fusion-evaporation reaction at 167 and 175 MeV beam energies, have been investigated by in-beam γ-ray spectroscopy. Based on the experiment measured results, together with references to the previous in-beam work and the studies of the 194Bi αdecay, the level scheme of 190Tl has been established as shown in Fig.1. Spins for the levels above the 300 keV 10-state were proposed from the measured DCO and γ-ray anisotropy results. It is the first time that spinThe high-spin states of 190Tl, populated via the 160Gd（35Cl, 5n）190Tl fusion-evaporation reaction at 167 and 175 MeV beam encrgies, have been investigated by in-beam γ-ray spectroscopy. Based on the experiment measured results, together with references to thc previous in-beam work[1] and the studies of the 194Bi a decay[2],

关 键 词：SIGNATURE反转 四氢大麻酚 高自旋态 实验测量 电子 衰变 

分 类 号：O571.2[理学—粒子物理与原子核物理] TQ646.4[理学—物理]