Constraints on Coulomb energy, neutron skin thickness in Pb-208, and symmetry energy

doi:10.1103/PhysRevC.97.034318

	Constraints on Coulomb energy, neutron skin thickness in Pb-208, and symmetry energy
	Dong, J. M.1; Wang, L. J.2; Zuo, W.1,3 ; Gu, J. Z.4
刊名	PHYSICAL REVIEW C
	2018-03-20
卷号	97 页码:034318
ISSN号	2469-9985
DOI	10.1103/PhysRevC.97.034318
英文摘要	The charge-symmetry-breaking (CSB) effect in a nuclear medium that gives rise to the first-order symmetry energy in finite nuclei is discussed in detail in the present paper. For heavy and superheavy nuclei with large neutron excesses, it should be nonnegligible in high-precision mass predictions, and importantly it affects the stability of these nuclei. Combined with this CSB effect, the Coulomb energy is constrained by using the experimental Coulomb displacement energy of mirror nuclei, and then the mass-dependent symmetry energy coefficients of heavy nuclei are reextracted with the experimental beta(-)-decay energies of heavy odd-A nuclei and with the experimental mass differences. Based on these results, we probe the neutron skin thickness Delta R-np of Pb-208 and the density-dependent symmetry energy coefficient of nuclear matter. Delta R-np in Pb-208 is found to be 0.158 +/- 0.014 fm, and the slopes L of the symmetry energy coefficient at densities of rho = 0.16 and rho = 0.11 fm(-3) are estimated to be 42 +/- 8 and 42 +/- 3 MeV, respectively. These results would be meaningful to discriminate between the models and the predictions that are relevant for the investigations on properties of nuclei and of neutron stars.
资助项目	K.C. Wong Education Foundation ; National Natural Science Foundation of China[11435014] ; National Natural Science Foundation of China[11775276] ; National Natural Science Foundation of China[11405223] ; National Natural Science Foundation of China[11675265] ; National Natural Science Foundation of China[11575112] ; 973 Program of China[2013CB834401] ; 973 Program of China[2013CB834405] ; National Key Program for S&T Research and Development[2016YFA0400501] ; National Key Program for S&T Research and Development[2016YFA0400502] ; Funds for Creative Research Groups of China[11321064] ; Youth Innovation Promotion Association of Chinese Academy of Sciences
WOS关键词	MICROSCOPIC MASS FORMULAS ; NUCLEAR-MATTER ; STARS ; STATE ; COEFFICIENTS ; EQUATION ; PHYSICS ; MODEL
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000427817100002
资助机构	K.C. Wong Education Foundation ; National Natural Science Foundation of China ; 973 Program of China ; National Key Program for S&T Research and Development ; Funds for Creative Research Groups of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47391]
专题	中国科学院近代物理研究所
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27516 USA 3.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 4.China Inst Atom Energy, POB 275,10, Beijing 102413, Peoples R China
推荐引用方式 GB/T 7714	Dong, J. M.,Wang, L. J.,Zuo, W.,et al. Constraints on Coulomb energy, neutron skin thickness in Pb-208, and symmetry energy[J]. PHYSICAL REVIEW C,2018,97:034318.
APA	Dong, J. M.,Wang, L. J.,Zuo, W.,&Gu, J. Z..(2018).Constraints on Coulomb energy, neutron skin thickness in Pb-208, and symmetry energy.PHYSICAL REVIEW C,97,034318.
MLA	Dong, J. M.,et al."Constraints on Coulomb energy, neutron skin thickness in Pb-208, and symmetry energy".PHYSICAL REVIEW C 97(2018):034318.