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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
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| High-spin states in (156)Yb and structure evolutions at large angular momenta in even-A Yb isotopes | |
| Source Publication | PHYSICAL REVIEW C
 |
| Keyword | Rare-earth Nuclei Mean-field Spectroscopy Band Er-154 Shape Systematics Isomers N=82 Alignments |
| Abstract | 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. |
| 2008 | |
| ISSN | 0556-2813 |
| Volume | 77Issue:6Pages:- |
| Subject Area | Physics |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/5519 |
| Collection | SCI期刊论文 |
| Corresponding Author | Li, ZY , Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | 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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