In-beam γ spectroscopy of the odd-Z nucleus 139Pm

被引：13
|
作者：
Zhang, N. T. [1 ]
Zhang, Y. H. [1 ]
Zhou, X. H. [1 ]
Liu, M. L. [1 ]
Zheng, Y. [1 ,3 ]
Wang, J. G. [1 ]
Fang, Y. D. [1 ]
Ding, B. [1 ,2 ]
Huang, W. J. [1 ,2 ]
Guo, Y. X. [1 ]
Lei, X. G. [1 ]
Chen, L. [1 ]
Wang, S. T. [1 ,2 ]
Wu, X. G. [3 ]
Zheng, Y. [1 ,3 ]
机构：
[1] Chinese Acad Sci, Dept Modern Phys, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
PHYSICAL REVIEW C | 2011年 / 84卷 / 05期
关键词：
HIGH-SPIN STATES; MAGNETIC ROTATION; DIPOLE BANDS; PROTON; REGION;
D O I：
10.1103/PhysRevC.84.057302
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
High-spin states in Pm-139 are investigated via the Cd-116(Al-27, 4n)Pm-139 fusion-evaporation reaction at a beam energy of 120 MeV. The previously reported level scheme has been modified because of identifications of some linking and doublet transitions. The revised yrast pi h(11/2) band obviously undergoes pi h(11/2) -> pi(h(11/2))(3) -> pi(h(11/2))(3)circle times nu(h(11/2))(-2) band crossings at (h) over bar omega = 0.45 and 0.39 MeV. Two negative-parity dipole bands have been assigned as pi h(11/2)circle times nu(h(11/2))(2) and pi h(11/2)circle times nu(h(11/2)) (4) configurations, respectively, and can be considered as examples of magnetic rotational bands.
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页数：4
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