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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 | |
发表期刊 | PHYSICAL REVIEW D |
语种 | 英语 |
关键词 | DYSON-SCHWINGER EQUATIONS PHASE-DIAGRAM QCD CONDENSATE |
摘要 | In 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 | |
ISSN | 2470-0010 |
卷号 | 99期号:7页码:76006 |
学科领域 | Astronomy & Astrophysics ; Physics |
学科门类 | Astronomy & Astrophysics ; Physics, Particles & Fields |
DOI | 10.1103/PhysRevD.99.076006 |
收录类别 | SCIE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/23453 |
专题 | SCI期刊论文 |
作者单位 | 1.[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 |
推荐引用方式 GB/T 7714 | 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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