Identification of a New Band and Its Signature Inversion in ^174Re  

作　　者：张玉虎 郭松 周小红 马龙 郭文涛 Oshima M. Toh Y. Koizumi M. Osa A. Kimura A. Hatsukawa Y. Sugawara M. Kusakari H. 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 [2]Graduate School of Chinese Academy of Sciences, Beijing 100039 [3]Japan Atomic Energy Agency, Tokai-Mura, Ibaraki 319-1195, Japan [4]Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan [5]Chiba University, Inage-ku, Chiba 263-8512, Japan

出　　处：《Chinese Physics Letters》2007年第5期1203-1206,共4页中国物理快报（英文版）

摘　　要：High spin states in ^174Re are investigated via the ^152Sm（^27 AL,5nγ）^174Re reaction and γ - γ coincidence relationships are analysed carefully. A new band is identified due to its spectroscopic connection with the known π1/2^-[541] × ν1/2^-[521] band. This band is proposed to be the ground-state band built on the π1/2^-[541]× ,ν5/2^-[512] configuration in view of the low-lying intrinsic states in the neighbouring odd-mass nuclei. It is of particular interesting that the new band exhibits a phenomenon of low-spin signature inversion, providing a new situation for theoretical investigations.

关 键 词：^174Re^174Re 

分 类 号：O56[理学—原子与分子物理]