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题名: New insight into the shape coexistence and shape evolution of Yb-157
作者: Xu, C ;  Hua, H ;  Li, XQ ;  Meng, J ;  Li, ZH ;  Xu, FR ;  Shi, Y ;  Liu, HL ;  Zhang, SQ ;  Li, ZY ;  Zhu, LH ;  Wu, XG ;  Li, GS ;  He, CY ;  Zhou, SG ;  Wang, SY ;  Ye, YL ;  Jiang, DX ;  Zheng, T ;  Lou, JL ;  Ma, LY ;  Wang, EH ;  Cheng, YY ;  He, C
刊名: PHYSICAL REVIEW C
出版日期: 2011
卷号: 83, 期号:1, 页码:14318
关键词: NUCLEI ;  IDENTIFICATION ;  BANDS
学科分类: Physics
通讯作者: Xu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
部门归属: [Xu, C.; Hua, H.; Li, X. Q.; Meng, J.; Li, Z. H.; Xu, F. R.; Shi, Y.; Liu, H. L.; Zhang, S. Q.; Ye, Y. L.; Jiang, D. X.; Zheng, T.; Lou, J. L.; Ma, L. Y.; Wang, E. H.; Cheng, Y. Y.; He, C.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Li, Z. Y.] Harbin Engn Univ, Coll Nucl Sci & Technol, Harbin 150001, Peoples R China; [Xu, C.; Hua, H.; Li, X. Q.; Meng, J.; Li, Z. H.; Xu, F. R.; Shi, Y.; Liu, H. L.; Zhang, S. Q.; Ye, Y. L.; Jiang, D. X.; Zheng, T.; Lou, J. L.; Ma, L. Y.; Wang, E. H.; Cheng, Y. Y.; He, C.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Zhu, L. H.; Wu, X. G.; Li, G. S.; He, C. Y.] China Inst Atom Energy, Beijing 102413, Peoples R China; [Zhou, S. G.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhou, S. G.] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; [Wang, S. Y.] Shandong Univ, Dept Space Sci & Appl Phys, Weihai 264209, Peoples R China
英文摘要: High-spin states in Yb-157 have been populated in the Sm-144( O-16,3n)Yb-157 fusion-evaporation reaction at a beam energy of 85 MeV. Two rotational bands built on the nu f(7/2) and nu h(9/2) intrinsic states, respectively, have been established for the first time. The newly observed nu f(7/2) band and previously known nu i(13/2) band in Yb-157 are discussed in terms of total Routhian surface methods and compared with the structures in the neighboring N = 87 isotones. The structural characters observed in Yb-157 provide evidence for shape coexistence of three distinct shapes: prolate, triaxial, and oblate. At higher spins, both the nu f(7/2) band and nu i(13/2) band in Yb-157 undergo a shape evolution with sizable alignments occurring.
资助者: Natural Science Foundation of China [10775005, 10405001, 10875002, 10735010, 10975007, 10875157, J0730316]; Chinese Major State Basic Research Development Program [2007CB815002]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000286755800004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14429
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Xu, C,Hua, H,Li, XQ,et al. New insight into the shape coexistence and shape evolution of Yb-157[J]. PHYSICAL REVIEW C,2011,83(1):14318.
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