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题名: Spin assignments of superdeformed bands in europium
作者: Wu, CS ;  Li, ZH
刊名: HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
出版日期: 2001
卷号: 25, 期号:2, 页码:121-128
关键词: LINKING TRANSITIONS ;  NUCLEI ;  REGION
学科分类: Physics
其他题名: Eu超形变带的自旋指定
通讯作者: Wu, CS , Chinese Acad Sci, Inst Theoret Phys, Beijing 100864, Peoples R China.
部门归属: Beijing Univ, Dept Phys, Beijing 100871, Peoples R China; Natl Lab Heavy Ion Accelerator, Inst Theoret Phys, Lanzhou 730000, Peoples R China
英文摘要: A comprehensive investigation of the superdeformed bands observed in (EU)-E-142,143,144,147 was given. The fluctuation in the transition energies has been removed. The smoothed transition energies were fitted by the ab-expression or its modification. The spins of these bands, except for band 4 of (EU)-E-147, have been assigned conclusively. The exit spin in (EU)-E-143 was Proposed to be 29/2, different from that asserted to be determined experimentally but remains to be confirmed. The corresponding values in (EU)-E-142 and Eu-144(a) are 21 and 28, lower than those proposed in the literature by 6 and 8 units, respectively. Two pairs of superdeformed bands in (EU)-E-147, i.e. bands 1,5 and bands 2,3 were proposed to be signature partners. The exit spins are 53/2 and 63/2 for the former pair, and 43/2 and 41/2 for the latter pair. In addition, both of them have a rather large de-coupling constant(approximate to -l), implying they are of K=1/2 and built on the single particle level v[651] down arrow or pi [530] down arrow. This assignment may be helpful for the studies of the so-called identical bands and pseudospin problem. The signature partner pairs observed in (EU)-E-144,148 are not included in the investigation.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000167147000006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12819
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wu, CS,Li, ZH. Spin assignments of superdeformed bands in europium[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2001,25(2):121-128.
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