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

doi:10.1142/S0217751X17500671

	Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential
	Pan, Zan 1,2; Cui, Zhu-Fang 3; Chang, Chao-Hsi 1,3,4; Zong, Hong-Shi 1,3,5
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2017-05-10
卷号	32 期号:13 页码:15
关键词	PNJL model QCD phase transitions critical exponents finite-volume effects
ISSN号	0217-751X
DOI	10.1142/S0217751X17500671
通讯作者	Pan, Zan(panzan@itp.ac.cn)
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.
WOS关键词	PB COLLISIONS ; SIZE ; QCD
WOS研究方向	Physics
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000400945900005
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/23084]
专题	中国科学院紫金山天文台
通讯作者	Pan, Zan
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 4.CCAST, World Lab, POB 8730, Beijing 100190, Peoples R China 5.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Pan, Zan,Cui, Zhu-Fang,Chang, Chao-Hsi,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):15.
APA	Pan, Zan,Cui, Zhu-Fang,Chang, Chao-Hsi,&Zong, Hong-Shi.(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),15.
MLA	Pan, Zan,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):15.