Finite volume effects on the chiral phase transition from Dyson-Schwinger equations of QCD

doi:10.1016/j.nuclphysb.2018.11.015

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	Finite volume effects on the chiral phase transition from Dyson-Schwinger equations of QCD
	Li, BL ; Cui, ZF ; Zhou, BW ; An, S 8; Zhang, LP ; Zong, HS
刊名	NUCLEAR PHYSICS B
	2019
卷号	938 页码:298-306
关键词	DIAGRAM
ISSN号	0550-3213
DOI	10.1016/j.nuclphysb.2018.11.015
英文摘要	Within the framework of Dyson-Schwinger equations of QCD, we study the finite volume effects on the chiral phase transition, especially the influence on the position of the possible pseudo-critical end point (pCEP). The results show that in the chiral limit case (the current quark mass m = 0), the absolute value of quark condensate decreases for smaller volumes, and more interestingly, so does the pseudo-critical temperature T-c (mu, = 0), which is in agreement with the Polyakov Nambu-Jona-Lasinio model result and opposite to the Polyakov linear sigma model prediction. These conclusions hold for m > 0 case in our calculations. Moreover, the results of pCEP as a function of different volumes show that T of pCEP also decreases for smaller volumes, but mu, of pCEP will increase, which are qualitatively more close to Polyakov linear sigma model results. For our model setup, results for systems with a size larger than (5 fm)(3) closely approximate those from infinite volume, but if the volume is smaller, the corrections are non-negligible, even significantly affect signatures of the results from an infinite system. There also exists some possibility that, if the system size is too small, the whole phase transition would be crossover, which means no pCEP exists at all. It is no doubt that, finite volume effects deserve further researches. (C) 2018 The Author(s). Published by Elsevier B.V.
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/311006/23522]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China 2.An, Sun 3.Zhang, Li-Ping 4.Nanjing Proton Source Res & Design Ctr, Nanjing 210093, Jiangsu, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.Changan Univ, Key Lab Rd Construct & Equipment MOE, Xian 710064, Shanxi, Peoples R China 7.[Li, Bo-Lin 8.Zhou, Bo-Wen 9.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Jiangsu, Peoples R China 10.[Cui, Zhu-Fang
推荐引用方式 GB/T 7714	Li, BL,Cui, ZF,Zhou, BW,et al. Finite volume effects on the chiral phase transition from Dyson-Schwinger equations of QCD[J]. NUCLEAR PHYSICS B,2019,938:298-306.
APA	Li, BL,Cui, ZF,Zhou, BW,An, S,Zhang, LP,&Zong, HS.(2019).Finite volume effects on the chiral phase transition from Dyson-Schwinger equations of QCD.NUCLEAR PHYSICS B,938,298-306.
MLA	Li, BL,et al."Finite volume effects on the chiral phase transition from Dyson-Schwinger equations of QCD".NUCLEAR PHYSICS B 938(2019):298-306.