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High-spin states in (156)Yb and structure evolutions at large angular momenta in even-A Yb isotopes
Li, Z. Y.; Hua, H.; Wang, S. Y.; Meng, J.; Li, Z. H.; Li, X. Q.; Xu, F. R.; Liu, H. L.; Zhang, S. Q.; Ye, Y. L.; Jiang, D. X.; Zheng, T.; Ma, L. Y.; Lu, F.; Fan, F. Y.; Han, L. Y.; Wang, H.; Xiao, J.; Chen, D.; Fang, X.; Lou, J. L.; Zhou, S. G.; Zhu, L. H.; Wu, X. G.; Li, G. S.; He, C. Y.; Liu, Y.; Hao, X.; Pan, B.; Li, L. H.; Li, ZY , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
2008
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号77期号:6页码:-
摘要High-spin states of (156)Yb have been studied via the (144)Sm((16)O,4n)(156)Yb fusion-evaporation reaction at beam energy 102 MeV. The positive-parity yrast band and negative-parity cascade have been extended up to higher-spin states, respectively. In the present work, the negative-parity sequence above the 25(-) state was found to be irregular and fragment into many parallel branches. This pattern may related to the excitation from the nucleon in the Z=64,N=82 core. The characteristics of alignment plot and E-GOS curve for the positive-parity yrast sequence in (156)Yb indicate that this nucleus may undergo an evolution from quasivibrational to quasirotational structure with increasing angular momentum. Based on a systematic summary of the available experimental alignments for the even-A (156,158,160,162,164)Yb isotopes, the structural evolutions induced by the increase in angular momentum, as well as by the change in neutron numbers, in these even-A Yb isotopes have been discussed in comparison with the cranked Woods-Saxon-Strutinsky calculations by means of total-Routhian-surface (TRS) methods.
部门归属[Li, ZY; Hua, H; Wang, SY; Meng, J; Li, ZH; Li, XQ; Xu, FR; Liu, HL; Zhang, SQ; Ye, YL; Jiang, DX; Zheng, T; Ma, LY; Lu, F; Fan, FY; Han, LY; Wang, H; Xiao, J; Chen, D; Fang, X; Lou, JL] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Li, ZY; Hua, H; Wang, SY; Meng, J; Li, ZH; Li, XQ; Xu, FR; Liu, HL; Zhang, SQ; Ye, YL; Jiang, DX; Zheng, T; Ma, LY; Lu, F; Fan, FY; Han, LY; Wang, H; Xiao, J; Chen, D; Fang, X; Lou, JL] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Zhou, SG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Zhou, SG] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; [Zhu, LH; Wu, XG; Li, GS; He, CY; Liu, Y; Li, XQ; Hao, X; Pan, B; Li, LH] China Inst Atom Energy, Beijing 102413, Peoples R China
关键词Rare-earth Nuclei Mean-field Spectroscopy Band Er-154 Shape Systematics Isomers N=82 Alignments
学科领域Physics
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收录类别SCI
WOS记录号WOS:000257290000035
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5519
专题理论物理所1978-2010年知识产出
通讯作者Li, ZY , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
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Li, Z. Y.,Hua, H.,Wang, S. Y.,et al. High-spin states in (156)Yb and structure evolutions at large angular momenta in even-A Yb isotopes[J]. PHYSICAL REVIEW C,2008,77(6):-.
APA Li, Z. Y..,Hua, H..,Wang, S. Y..,Meng, J..,Li, Z. H..,...&Li, ZY , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2008).High-spin states in (156)Yb and structure evolutions at large angular momenta in even-A Yb isotopes.PHYSICAL REVIEW C,77(6),-.
MLA Li, Z. Y.,et al."High-spin states in (156)Yb and structure evolutions at large angular momenta in even-A Yb isotopes".PHYSICAL REVIEW C 77.6(2008):-.
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