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Li, CM; Yin, PL; Zong, HS
New algorithm to study the pseudo-Wigner solution of the quark gap equation in the framework of the (2+1)-flavor NJL model
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordDYSON-SCHWINGER EQUATIONS PHASE-DIAGRAM QCD CONDENSATE
AbstractIn this paper, we study the pseudo-Wigner solution of the quark gap equation with a recently proposed algorithm in the framework of the (2 + 1)-flavor Nambu-Jona-Lasinio (NJL) model. We find that for the current quark mass m(u,d) = 5.5 MeV and chemical potential mu < mu(TCP) = 272.5 MeV, the Nambu solution and the positive pseudo-Wigner solution obtained via this algorithm is consistent with the physical solution obtained with the iterative method. Furthermore, the algorithm we used can help to illustrate the evolution of the solutions of the gap equation from the chiral limit to nonchiral limit and gives a prediction where the crossover line is located in the phase diagram for mu < 272.5 MeV. In addition, we also study the chiral susceptibilities as well as the loss of solutions for different chemical potentials.
2019
ISSN2470-0010
Volume99Issue:7Pages:76006
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.99.076006
Indexed BySCIE
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23453
CollectionSCI期刊论文
Affiliation1.[Li, Cheng-Ming
2.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
3.Nanjing Univ Posts & Telecommun, Coll Sci, Nanjing 210023, Jiangsu, Peoples R China
4.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
5.Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
6.Nanjing Proton Source Res & Design Ctr, Nanjing 210093, Jiangsu, Peoples R China
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Li, CM,Yin, PL,Zong, HS. New algorithm to study the pseudo-Wigner solution of the quark gap equation in the framework of the (2+1)-flavor NJL model[J]. PHYSICAL REVIEW D,2019,99(7):76006.
APA Li, CM,Yin, PL,&Zong, HS.(2019).New algorithm to study the pseudo-Wigner solution of the quark gap equation in the framework of the (2+1)-flavor NJL model.PHYSICAL REVIEW D,99(7),76006.
MLA Li, CM,et al."New algorithm to study the pseudo-Wigner solution of the quark gap equation in the framework of the (2+1)-flavor NJL model".PHYSICAL REVIEW D 99.7(2019):76006.
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