New effective interactions for hypernuclei in a density-dependent relativistic mean field model

doi:10.1103/PhysRevC.104.054321

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	New effective interactions for hypernuclei in a density-dependent relativistic mean field model
	Rong, Yu-Ting ; Tu, Zhong-Hao ; Zhou, Shan-Gui
刊名	PHYSICAL REVIEW C
	2021
卷号	104 期号:5 页码:54321
关键词	HARTREE-BOGOLIUBOV THEORY LAMBDA-HYPERNUCLEI DEFORMED-NUCLEI FINITE NUCLEI EXCHANGE SIGMA EQUATION HYPERONS MATTER STATE
ISSN号	2469-9985
DOI	10.1103/PhysRevC.104.054321
英文摘要	New effective Lambda N interactions are proposed for the density-dependent relativistic mean-field model. The multidimensionally constrained relativistic mean-field model is used to calculate ground-state properties of eleven known Lambda hypernuclei with A >= 12 and the corresponding core nuclei. Based on effective NN interactions DD-ME2 and PKDD, the ratios R-sigma and R-omega of scalar and vector coupling constants between Lambda N and NN interactions are determined by fitting calculated A separation energies to experimental values. We propose six new effective interactions for A hypernuclei: DD-ME2-Y1, DD-ME2-Y2, DD-ME2-Y3, PKDD-Y1, PKDD-Y2, and PKDD-Y3 with three ways of grouping and including these eleven hypernuclei in the fitting. It is found that the two ratios R-sigma and R-omega correlate well and a good linear relation exists between them. The statistical errors of the ratio parameters in these effective interactions are analyzed. These new effective interactions are used to study the single-Lambda excited states, the equation of state of hypernuclear matter, and neutron-star properties with hyperons.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27638]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Tu, Zhong-Hao 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Peoples R China 5.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Gansu, Peoples R China 6.[Rong, Yu-Ting
推荐引用方式 GB/T 7714	Rong, Yu-Ting,Tu, Zhong-Hao,Zhou, Shan-Gui. New effective interactions for hypernuclei in a density-dependent relativistic mean field model[J]. PHYSICAL REVIEW C,2021,104(5):54321.
APA	Rong, Yu-Ting,Tu, Zhong-Hao,&Zhou, Shan-Gui.(2021).New effective interactions for hypernuclei in a density-dependent relativistic mean field model.PHYSICAL REVIEW C,104(5),54321.
MLA	Rong, Yu-Ting,et al."New effective interactions for hypernuclei in a density-dependent relativistic mean field model".PHYSICAL REVIEW C 104.5(2021):54321.