Mass of the neutron star PSR J1614-2230

doi:10.1103/PhysRevC.85.065806

	Mass of the neutron star PSR J1614-2230
	Zhao, Xian-Feng 1; Jia, Huan-Yu 2
刊名	PHYSICAL REVIEW C
	2012-06-15
卷号	85
ISSN号	0556-2813
DOI	10.1103/PhysRevC.85.065806
文献子类	Article
英文摘要	We attempted to determine the possible models for the neutron star PSR J1614-2230 in the framework of the relativistic mean field theory considering the baryon octet. It was found that the maximum mass of the neutron star will increase as the x(omega) increases, with the x(rho Lambda), x(rho Sigma), x(rho Xi), and the x(sigma) being fixed. By successively adopting the approximate methods, we can obtain four of the possible models: (i) x(sigma) = 0.33 and x(omega) = 0.6964, (ii) x(sigma) = 0.4 and x(omega) = 0.7435, (iii) x(sigma) = 0.5 and x(omega) = 0.8106, and (iv) x(sigma) = 0.6 and x(omega) = 0.8772. Here, the hyperon coupling constants x(rho) are x(rho Lambda) = 0, x(rho Sigma) = 2, x(rho Xi) = 1, and the nucleon coupling constants are chosen as GL97. Further, the possible value range of x(sigma) and x(omega), which corresponds to the mass of the neutron star PSR J1614-2230, is also determined through the four values of hyperon coupling constants determined in this paper. Our results may prove that the hadronic theory model can describe the mass of the neutron star PSR J1614-2230.
WOS关键词	MEAN-FIELD THEORY ; HYPERNUCLEI ; LAMBDA ; NUCLEI
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000305539200006
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48761]
专题	中国科学院近代物理研究所
通讯作者	Zhao, Xian-Feng
作者单位	1.Chuzhou Univ, Coll Mech & Elect Engn, Chuzhou 239000, Peoples R China 2.SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xian-Feng,Jia, Huan-Yu. Mass of the neutron star PSR J1614-2230[J]. PHYSICAL REVIEW C,2012,85.
APA	Zhao, Xian-Feng,&Jia, Huan-Yu.(2012).Mass of the neutron star PSR J1614-2230.PHYSICAL REVIEW C,85.
MLA	Zhao, Xian-Feng,et al."Mass of the neutron star PSR J1614-2230".PHYSICAL REVIEW C 85(2012).