Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential

doi:http://dx.doi.org/10.1142/S0217751X17500671

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	Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential
	Zong, HS; Pan, Z; Cui, ZF; Chang, CH; Pan, Z (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2017
卷号	32 期号:13 页码:1750067
关键词	Pnjl Model Qcd Phase Transitions Critical Exponents Finite-volume Effects
DOI	http://dx.doi.org/10.1142/S0217751X17500671
英文摘要	To investigate the finite-volume effects on the chiral symmetry restoration and the deconfinement transition for a quantum chromodynamics (QCD) system with N-f = 2 (two quark flavors), we apply the Polyakov-loop extended Nambu Jona-Lasinio model by introducing a chiral chemical potential mu(5) artificially. The final numerical results indicate that the introduced chiral chemical potential does not change the critical exponents, but shifts the location of critical end point (CEP) significantly; the ratios for the chiral chemical potentials and temperatures at CEP, mu(c)/mu(5c) and T-c/T-5c, are significantly affected by the system size R. The behavior is that TT increases slowly with mu(5) when R is "large" and T-c decreases first and then increases with mu(5) when R is "small." It is also found that for a fixed mu(5), there is a R-min, where the critical end point vanishes and the whole phase diagram becomes a crossover when R < R-min. Therefore, we suggest that for the heavy-ion collision experiments, which is to study the possible location of CEP, the finite-volume behavior should be taken into account.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22057]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Pan, Z (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Zong, HS,Pan, Z,Cui, ZF,et al. Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2017,32(13):1750067.
APA	Zong, HS,Pan, Z,Cui, ZF,Chang, CH,&Pan, Z .(2017).Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,32(13),1750067.
MLA	Zong, HS,et al."Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 32.13(2017):1750067.