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2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations
Xu, Shu-Sheng1,3; Yan, Yan1; Cui, Zhu-Fang1,3; Zong, Hong-Shi1,2,3
2015-12-30
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS A
Volume30Issue:36
AbstractWithin 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.
KeywordEquation Of State Quark Number Density Dyson-schwinger Equations
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1142/S0217751X15502176
WOS KeywordQUARK MATTER ; SYMMETRY-BREAKING ; PHASE-TRANSITION ; WIGNER SOLUTION ; POLYAKOV-LOOP ; PNJL MODEL ; NJL-MODEL ; DENSITY ; PHYSICS ; STARS
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000367524800004
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16089
Collection南极天文中心
Affiliation1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xu, Shu-Sheng,Yan, Yan,Cui, Zhu-Fang,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).
APA Xu, Shu-Sheng,Yan, Yan,Cui, Zhu-Fang,&Zong, Hong-Shi.(2015).2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,30(36).
MLA Xu, Shu-Sheng,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).
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