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NJL model with the modified quark-dependent coupling strength G
Fan, Zhou-You1; Fan, Wen-Kai2; Wang, Qing-Wu3; Zong, Hong-Shi1,4,5
2017-06-28
Source PublicationMODERN PHYSICS LETTERS A
ISSN0217-7323
Volume32Issue:20Pages:11
Corresponding AuthorZong, Hong-Shi(zonghs@nju.edu.cn)
AbstractIn this paper, the coupling strength G of the Nambu-Jona-Lasinio (NJL) model is modified by incorporating quark's feedback into the gluon propagator. The modified two flavor NJL model with the quark-dependent coupling strength is explored. The quark condensate in this framework has a conspicuous agreement with the lattice quantum chromodynamics (QCD) results at finite temperature. Then, it is compared with the original NJL model in both zero (chiral limit) and nonzero current quark mass. The QCD phase diagram and susceptibilities are investigated in the temperature-chemical potential (T-mu) plane. Therefore, the pseudo-critical temperature T-c and the critical end point (CEP) are worked out and compared with original NJL model or lattice QCD results. In addition, the pion mass and decay constant are studied at finite temperature.
KeywordNJL model chiral phase transition lattice QCD
DOI10.1142/S0217732317501073
WOS KeywordQUASI-PARTICLE MODEL ; DYSON-SCHWINGER EQUATIONS ; CHIRAL PHASE-TRANSITION ; ZERO-POINT ENERGY ; FINITE-TEMPERATURE ; WIGNER SOLUTION ; GLUON PLASMA ; QCD ; PROPAGATOR ; BEHAVIOR
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
WOS IDWOS:000404353900005
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22929
Collection中国科学院紫金山天文台
Corresponding AuthorZong, Hong-Shi
Affiliation1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Univ, Kuang Yaming Honors Sch, Nanjing 210093, Jiangsu, Peoples R China
3.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
4.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
5.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Fan, Zhou-You,Fan, Wen-Kai,Wang, Qing-Wu,et al. NJL model with the modified quark-dependent coupling strength G[J]. MODERN PHYSICS LETTERS A,2017,32(20):11.
APA Fan, Zhou-You,Fan, Wen-Kai,Wang, Qing-Wu,&Zong, Hong-Shi.(2017).NJL model with the modified quark-dependent coupling strength G.MODERN PHYSICS LETTERS A,32(20),11.
MLA Fan, Zhou-You,et al."NJL model with the modified quark-dependent coupling strength G".MODERN PHYSICS LETTERS A 32.20(2017):11.
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