High-SpinStatesin141Pm

被引:0
|
作者
朱胜江 [1 ]
顾龙 [1 ]
王建国 [1 ]
肖志刚 [1 ]
杨韵颐 [1 ]
张明 [1 ]
刘宇 [1 ]
丁怀博 [1 ]
竺礼华 [2 ]
吴晓光 [2 ]
贺创业 [2 ]
李广生 [2 ]
王烈林 [2 ]
郑云 [2 ]
张彪 [2 ]
机构
[1] Department of Physics, Tsinghua University
[2] China Institute of Atomic
关键词
D O I
暂无
中图分类号
O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The high-spin states of 141Pm nucleus have been studied by using in-beam γ-ray spectroscopy technology through the 126Te( 19F, 4n) reaction at a beam energy of 90 MeV. The previous level scheme has been extended with spin up to 49/2 . Many new levels and transitions are identified. Five collective band structures are observed. Based on systematic comparison with the neighboring nuclei, two bands with strong I = 1 M1 transitions inside the bands are proposed as the oblate bands with γ~-60°, and three bands with large signature splitting have been suggested as the oblate-triaxial deformation with γ~-90 °. The characteristics for these bands have been discussed.
引用
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页码:496 / 498
页数:3
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