Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes
	Wang, HL; Yang, J; Liu, ML; Xu, FR
刊名	PHYSICAL REVIEW C
	2015
卷号	92 期号:2 页码:24303
通讯作者	Wang, HL (reprint author), Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450001, Peoples R China.
英文摘要	Quadrupole and octupole stiffnesses in the ground states of even-even Ba112-150 isotopes have been systematically investigated by means of potential-energy-surface calculations. The calculations are carried out in both (beta(2), gamma, beta(4)) and (beta(2), beta(3), beta(4), beta(5)) deformation spaces with the inclusion of triaxial and reflection-asymmetric shape degrees of freedom, respectively. The present results are compared with previous calculations and available experiments. The shape instabilities are evaluated by analyzing the potential energy curves with respect to both the quadrupole and octupole deformations, which is consistent with the previous discussions predicting the gamma softness or triaxiality and octupole instability. In addition, taking the near-drip-line Ba-114 nucleus as an example, we briefly investigate the effects of potential parameters (e.g., the strength of the spin-orbit potential., and the nuclear surface diffuseness a) on the deformation energy curve, showing almost negligible modifications of nuclear shape and stiffness but considerable changes in the depth of the minimum and the height of the fission barrier (which may be very important for the study of heavy and superheavy nuclei).
学科主题	Physics
类目[WOS]	Physics, Nuclear
关键词[WOS]	QUANTUM PHASE-TRANSITIONS ; INTERACTION CROSS-SECTIONS ; MEAN-FIELD DESCRIPTION ; NUCLEAR-MASS FORMULA ; ATOMIC-NUCLEI ; STRUCTURAL EVOLUTION ; REFLECTION ASYMMETRY ; DEFORMATION ENERGY ; ROTATING NUCLEI ; CHARGED DROP
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20904]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Wang, HL,Yang, J,Liu, ML,et al. Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes[J]. PHYSICAL REVIEW C,2015,92(2):24303.
APA	Wang, HL,Yang, J,Liu, ML,&Xu, FR.(2015).Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes.PHYSICAL REVIEW C,92(2),24303.
MLA	Wang, HL,et al."Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes".PHYSICAL REVIEW C 92.2(2015):24303.