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Proper time regularization and the QCD chiral phase transition
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.
2017
发表期刊SCIENTIFIC REPORTS
卷号7页码:45937
文章类型Article
摘要We 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.
学科领域Science & Technology - Other Topics
资助者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] ; 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] ; 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] ; 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]
DOIhttp://dx.doi.org/10.1038/srep45937
关键词[WOS]JONA-LASINIO MODEL ; DYSON-SCHWINGER EQUATIONS ; HADRON-QUARK CROSSOVER ; NJL-MODEL ; VECTOR INTERACTION ; SYMMETRY-BREAKING ; WIGNER SOLUTION ; DIAGRAM ; MATTER ; STARS
语种英语
资助者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] ; 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] ; 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] ; 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]
WOS类目Multidisciplinary Sciences
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22081
专题理论物理所SCI论文
通讯作者Cui, 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.
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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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