Band properties of the transitional nucleus Pt-187

doi:10.1103/PhysRevC.75.034314

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	Band properties of the transitional nucleus Pt-187
	Zhou, X. H.; Xing, Y. B.; Liu, M. L.; Zhang, Y. H.; Guo, Y. X.; Ma, L.; Lei, X. G.; Guo, W. T.; Oshima, M.; Toh, Y.
刊名	PHYSICAL REVIEW C
	2007-03-01
卷号	75 期号:3 页码:17
ISSN号	0556-2813
DOI	10.1103/PhysRevC.75.034314
英文摘要	High-spin states in Pt-187 have been studied experimentally using the Yb-173(O-18, 4n) reaction at beam energies of 78 and 85 MeV. The previously known bands based on the nu i(13/2),nu 7/2(-)[503], and nu i(13/2)(2)nu j configurations have been extended to high-spin states, and new rotational bands associated with the nu 3/2(-)[512] and nu 1/2(-)[521] Nilsson orbits have been identified. The total Routhian surface calculations indicate that the transitional nucleus Pt-187 is very soft with respect to beta and gamma deformations. The band properties, such as level spacings, band crossing frequencies, alignment gains, and signature splittings, have been compared with the systematics observed in neighboring nuclei and have been interpreted within the framework of the cranked shell model. The rotational bands show different band crossing frequencies, which can be explained by the alignment either of i(13/2) neutrons or of h(9/2) protons. Importantly, evidence is presented for a pi h(9/2) alignment at very low frequency in the nu 7/2(-)[503] band. The proton nature of the band crossing is strongly suggested by comparing the measured B(M1;I -> I-1)/B(E2;I -> I-2) ratios with the theoretical values from the semiclassical Donau and Frauendof approach.
WOS关键词	MEASURED MAGNETIC-MOMENTS ; HIGH-SPIN STATES ; SHAPE COEXISTENCE ; NEUTRON-DEFICIENT ; ROTATIONAL BANDS ; ALIGNMENT PROCESSES ; ANGULAR-MOMENTUM ; HG ISOTOPES ; EVEN ; SPECTROSCOPY
WOS研究方向	Physics
语种	英语
出版者	AMERICAN PHYSICAL SOC
WOS记录号	WOS:000245332200024
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/6009]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者	Zhou, X. H.
作者单位	1.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 2.Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China 5.Chiba Inst Technol, Narashino, Chiba 2750023, Japan 6.Peking Univ, MOE Key Lab, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhou, X. H.,Xing, Y. B.,Liu, M. L.,et al. Band properties of the transitional nucleus Pt-187[J]. PHYSICAL REVIEW C,2007,75(3):17.
APA	Zhou, X. H..,Xing, Y. B..,Liu, M. L..,Zhang, Y. H..,Guo, Y. X..,...&Sugawara, M..(2007).Band properties of the transitional nucleus Pt-187.PHYSICAL REVIEW C,75(3),17.
MLA	Zhou, X. H.,et al."Band properties of the transitional nucleus Pt-187".PHYSICAL REVIEW C 75.3(2007):17.