Identification of Collective Oblate Bands in 138Ce
ZHU Sheng-jiang1, LI Ming1, ZHU Ling-yan1, GAN Cui-yun1, M. Sakhaee1, YANG Li-ming1, PAU San-li1, LONG Gui-lu1, DENG Jing-kang1, WEN Shu-xian2, WU Xiao-guang2, LIU Xiang-an2
1Department of Physics, Tsinghua University, Beijing 100084
2China Institute of Atomic Energy, Beijing 102413
Identification of Collective Oblate Bands in 138Ce
Abstract： High spin states in 138Ce have been investigated following heavy-ion induced reactions carried out at the China Institute of Atomic Energy, Beijing. Two collective rotational bands were established for the first time. These two bands show oblate deformation with γ= -60°and probably originate from the four quasiparticle configurations πg7/2 πh11/2vh11/2 vd3/2 and πg7/2πh11/2 [vh11/2]2, respectively. These oblate bands exhibit strong M1 transitions, no signature splitting and different moments of inertia from those of prolate bands.
MA Long;ZHOU Xiao-Hong;XING Ye-Bing;ZHANG Yu-Hu;GUO Ying-Xing;LEI Xiang-Guo;XIE Chen-Ying;Oshima M.;Toh Y.;Koizumi M.;Osa A.;Hatsukawa Y.;Sugawara M.. Properties of the πh9/2 otimes νi13/2 Oblate Band in 188Tl[J]. 中国物理快报, 2006, 23(7): 1727-1730.
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1999, Vol. 16 
