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题名: Characteristics of collectivity along the yrast line in even-even tungsten isotopes
作者: Yang, Q ;  Wang, HL ;  Liu, ML ;  Xu, FR
刊名: PHYSICAL REVIEW C
出版日期: 2016
卷号: 94, 期号:2, 页码:24310
学科分类: Physics
DOI: http://dx.doi.org/10.1103/PhysRevC.94.024310
通讯作者: Wang, HL (reprint author), Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450001, Peoples R China. ;  Wang, HL (reprint author), Zhengzhou Univ, Henan Key Lab Ion Beam Bioengn, Zhengzhou 450052, Peoples R China.
文章类型: Article
英文摘要: The collective nature of high-spin yrast states in even-even W160-190 isotopes was systematically investigated by means of pairing self-consistent Woods-Saxon-Strutinsky calculations using the total Routhian surface approach in (beta(2),gamma,beta(4)) deformation space. The calculated ground-state deformations are consistent with previous calculations and available experimental data. The deformation energy curves are presented to show the shape and softness evolutions, in particular in the triaxial direction. The backbending or upbending behavior in moment of inertia is attributed to band crossing. It is found that the neutron rotation alignment is preferred for most of the W isotopes (e.g., in W164-180), while in other nuclei the competition between the neutron and proton alignments may occur, even the proton alignment is favored in the very neutron-deficient nucleus W-160. In addition, the evolution and transition between vibrational and rotational collective modes along the yrast line are investigated on the basis of the new centipedelike E-GOS (E-Gamma Over Spin) curves introduced by us, which to some extent explains the existing differences (e.g., in the moment of inertia) between theory and experiment.
类目[WOS]: Physics, Nuclear
关键词[WOS]: SPIN NONYRAST STATES ;  SHAPE COEXISTENCE ;  HEAVY-NUCLEI ;  MEAN-FIELD ;  DEFORMATION ENERGIES ;  ROTATING NUCLEI ;  ATOMIC-NUCLEI ;  MASS FORMULA ;  INERTIA ;  MOMENTS
收录类别: SCI
项目资助者: Outstanding Young Talent Research Fund of Zhengzhou University [1521317002] ;  National Natural Science Foundation of China [11205207, 11205208, 11505157] ;  Foundation and Advanced Technology Research Program of Henan Province [132300410125]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21568
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Yang, Q,Wang, HL,Liu, ML,et al. Characteristics of collectivity along the yrast line in even-even tungsten isotopes[J]. PHYSICAL REVIEW C,2016,94(2):24310.
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