High-Spin States in 141Pm

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 Energy

来源：

Plasma Science and Technology | 2012年 / 14卷 / 06期

基金：

中国国家自然科学基金;

关键词：

nuclear structure; high spin states; oblate band; oblate-triaxial band;

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

页码：496 / 498

页数：3

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