Mass dependence of pseudocritical temperature in mean field approximation

doi:10.1103/PhysRevD.104.014005

	Mass dependence of pseudocritical temperature in mean field approximation
	Bai, Zhan 6,7; Chang, Lei 1; Chao, Jingyi 5,8; Gao, Fei 2; Liu, Yu-xin 3,4,6,7
刊名	PHYSICAL REVIEW D
	2021-07-07
卷号	104 期号:1 页码:11
ISSN号	2470-0010
DOI	10.1103/PhysRevD.104.014005
通讯作者	Chang, Lei(leichang@nankai.edu.cn) ; Liu, Yu-xin(yxliu@pku.edu.cn)
英文摘要	We implement the Dyson-Schwinger equation approach to study the mass dependence of pseudocritical temperature of QCD crossover at zero chemical potential. For the quark-gluon vertex, we take simply the rainbow approximation, while for the gluon propagator, we make use of various dressing functions. We analyze the scaling behavior with these different gluon models and obtain the critical exponent consistent with the mean field value for 3D O(4) universality class, which means the rainbow truncation will lead to the mean field result, regardless of the gluon dressing model. The size of critical region is up to m(0) <= 1-2 MeV in this mean field approximation, which sets naturally an upper bound of the critical region since the fluctuations beyond mean field usually diminish the critical region. The pseudocritical temperature corresponds to the maximum value of the chiral susceptibility, and for the chiral susceptibility of a certain percentage of its maximum value, the corresponding temperature might be mass independent. We analyze this percentage and studied the pion mass range in which the corresponding temperature remain constant. The results show that this percentage and the pion mass range depend on the details of interaction kernel, which differs in gluon models.
资助项目	National Natural Science Foundation of China[11435001] ; National Natural Science Foundation of China[11775041] ; National Natural Science Foundation of China[11947108] ; National Natural Science Foundation of China[11605254] ; Alexander von Humbodlt Foundation
WOS关键词	DYSON-SCHWINGER EQUATIONS ; CHIRAL-SYMMETRY BREAKING ; PHASE-TRANSITIONS ; INFRARED BEHAVIOR ; QCD ; DECONFINEMENT ; CONFINEMENT ; SPECTRUM ; HADRONS ; THEOREM
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000670704600003
资助机构	National Natural Science Foundation of China ; Alexander von Humbodlt Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137071]
专题	中国科学院近代物理研究所
通讯作者	Chang, Lei; Liu, Yu-xin
作者单位	1.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 2.Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany 3.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 5.Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Jiangxi, Peoples R China 6.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 7.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 8.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Bai, Zhan,Chang, Lei,Chao, Jingyi,et al. Mass dependence of pseudocritical temperature in mean field approximation[J]. PHYSICAL REVIEW D,2021,104(1):11.
APA	Bai, Zhan,Chang, Lei,Chao, Jingyi,Gao, Fei,&Liu, Yu-xin.(2021).Mass dependence of pseudocritical temperature in mean field approximation.PHYSICAL REVIEW D,104(1),11.
MLA	Bai, Zhan,et al."Mass dependence of pseudocritical temperature in mean field approximation".PHYSICAL REVIEW D 104.1(2021):11.