2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations

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	2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations
	Xu, SS; Yan, Y; Cui, ZF; Zong, HS
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2015
卷号	30 期号:36 页码:1550217
关键词	Equation of state quark number density Dyson-Schwinger equations
通讯作者	Xu, SS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
英文摘要	Within the framework of Dyson-Schwinger equations (DSEs), we discuss the equation of state (EOS) and quark number densities of 2 + 1 flavors, that is to say, u, d, and a quarks. The chemical equilibrium and electric charge neutrality conditions are used to constrain the chemical potential of different quarks. The EOS in the cases of 2 flavors and 2 + 1 flavors are discussed, and the quark number densities, the pressure, and energy density per baryon are also studied. The results show that there is a critical chemical potential for each flavor of quark, at which the quark number density turns to nonzero from 0; and furthermore, the system with 2 + 1 flavors of quarks is more stable than that with 2 flavors in the system. These discussions may provide some useful in to some research fields, such as the studies related to the QCD phase transitions or compact stars.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
关键词[WOS]	QUARK MATTER ; SYMMETRY-BREAKING ; PHASE-TRANSITION ; WIGNER SOLUTION ; POLYAKOV-LOOP ; PNJL MODEL ; NJL-MODEL ; DENSITY ; PHYSICS ; STARS
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/311006/20734]
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	Xu, SS,Yan, Y,Cui, ZF,et al. 2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2015,30(36):1550217.
APA	Xu, SS,Yan, Y,Cui, ZF,&Zong, HS.(2015).2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,30(36),1550217.
MLA	Xu, SS,et al."2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 30.36(2015):1550217.