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Cui, ZF; Zhang, JL; Zong, HS; Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China.
Proper time regularization and the QCD chiral phase transition
Source PublicationSCIENTIFIC REPORTS
Language英语
AbstractWe study the QCD chiral phase transition at finite temperature and finite quark chemical potential within the two flavor Nambu-Jona-Lasinio (NJL) model, where a generalization of the proper-time regularization scheme is motivated and implemented. We find that in the chiral limit the whole transition line in the phase diagram is of second order, whereas for finite quark masses a crossover is observed. Moreover, if we take into account the influence of quark condensate to the coupling strength (which also provides a possible way of how the effective coupling varies with temperature and quark chemical potential), it is found that a CEP may appear. These findings differ substantially from other NJL results which use alternative regularization schemes, some explanation and discussion are given at the end. This indicates that the regularization scheme can have a dramatic impact on the study of the QCD phase transition within the NJL model.
2017
Volume7Pages:45937
Subject AreaScience & Technology - Other Topics
DOIhttp://dx.doi.org/10.1038/srep45937
Funding OrganizationNational Natural Science Foundation of China [11475085, 11535005, 11690030] ; National Natural Science Foundation of China [11475085, 11535005, 11690030] ; National Natural Science Foundation of China [11475085, 11535005, 11690030] ; National Natural Science Foundation of China [11475085, 11535005, 11690030] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; Jiangsu Planned Projects for Postdoctoral Research Fund [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Fund [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Fund [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Fund [1402006C]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22081
CollectionSCI期刊论文
Corresponding AuthorCui, ZF; Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Cui, ZF,Zhang, JL,Zong, HS,et al. Proper time regularization and the QCD chiral phase transition[J]. SCIENTIFIC REPORTS,2017,7:45937.
APA Cui, ZF,Zhang, JL,Zong, HS,Zong, HS ,Zong, HS ,&Zong, HS .(2017).Proper time regularization and the QCD chiral phase transition.SCIENTIFIC REPORTS,7,45937.
MLA Cui, ZF,et al."Proper time regularization and the QCD chiral phase transition".SCIENTIFIC REPORTS 7(2017):45937.
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