Density dependence of the symmetry energy probed by beta(-) decay energies of odd-A nuclei

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	Density dependence of the symmetry energy probed by beta(-) decay energies of odd-A nuclei
	Dong, JM ; Zhang, HF ; Wang, LJ ; Zuo, W
刊名	PHYSICAL REVIEW C
	2013
卷号	88 期号:1 页码:14302
关键词	NEUTRON-STAR ISOSPIN ASYMMETRY EQUATION MASSES RADII PHYSICS MATTER MODEL
ISSN号	0556-2813
通讯作者	Dong, JM (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
英文摘要	The mass-dependent symmetry energy coefficients a(sym)(A) are extracted with the beta-decay energies Q(beta-) of heavy odd-A nuclei. The dominant position of this approach is that only the Coulomb energy survives in Q(beta-) to determine the unknown a(sym)(A). The obtained a(sym)(A) is employed to analyze the density dependence of the nuclear matter symmetry energy around the saturation density. The estimated a(sym)(A) of Pb-208 is 22.1-22.7 MeV. The slope parameter of the symmetry energy is found to be 50 +/- 15 MeV, with the symmetry energy S-0 = 32.3 +/- 1.3 MeV at saturation density obtained from the analysis of pygmy dipole resonance (PDR) [Carbone et al., Phys. Rev. C 81, 041301(R) (2010)] as input. Furthermore, the corresponding neutron skin thickness in Pb-208 is estimated to be Delta R-np = 0.174 +/- 0.022 fm.
学科主题	Physics
收录类别	SCI
资助信息	973 Program of China [2013CB834405]; National Natural Science Foundation of China [11175219, 10975190, 11275271]; Knowledge Innovation Project of Chinese Academy of Sciences [KJCX2-EW-N01]; Funds for Creative Research Groups of China [11021504]
原文出处	http://dx.doi.org/10.1103/PhysRevC.88.014302
语种	英语
WOS记录号	WOS:000321270800002
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15326]
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	Dong, JM,Zhang, HF,Wang, LJ,et al. Density dependence of the symmetry energy probed by beta(-) decay energies of odd-A nuclei[J]. PHYSICAL REVIEW C,2013,88(1):14302.
APA	Dong, JM,Zhang, HF,Wang, LJ,&Zuo, W.(2013).Density dependence of the symmetry energy probed by beta(-) decay energies of odd-A nuclei.PHYSICAL REVIEW C,88(1),14302.
MLA	Dong, JM,et al."Density dependence of the symmetry energy probed by beta(-) decay energies of odd-A nuclei".PHYSICAL REVIEW C 88.1(2013):14302.