Proper time regularization at finite quark chemical potential

doi:http://dx.doi.org/10.1142/S0217732316500863

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	Proper time regularization at finite quark chemical potential
	Zhang, JL ; Shi, YM ; Xu, SS ; Zong, HS
刊名	MODERN PHYSICS LETTERS A
	2016
卷号	31 期号:14 页码:1650086
关键词	Proper-time regularization CHIRAL PHASE-TRANSITION chiral phase transition JONA-LASINIO MODEL crossover NJL-MODEL DYNAMICAL MODEL WIGNER SOLUTION MAGNETIC-FIELD QCD SOLITON MASS SUPERCONDUCTIVITY
DOI	http://dx.doi.org/10.1142/S0217732316500863
英文摘要	In this paper, we use the two-flavor Nambu-Jona-Lasinio (NJL) model to study the quantum chromodynamics (QCD) chiral phase transition. To deal with the ultraviolet (UV) issue, we adopt the popular proper time regularization (PTR), which is commonly used not only for hadron physics but also for the studies with magnetic fields. This regularization scheme can introduce the infrared (IR) cutoff to include quark confinement. We generalize the PTR to zero temperature and finite chemical potential case use a completely new method, and then study the chiral susceptibility, both in the chiral limit case and with finite current quark mass. The chiral phase transition is second-order in mu = 0 and T = 0 and crossover at mu not equal 0 and T = 0. Three sets of parameters are used to make sure that the results do not depend on the parameter choice.
学科主题	Physics
语种	英语
资助机构	National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of Jiangsu Province of China [BK20130078]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23269]
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.[Xu, Shu-Sheng 2.[Zhang, Jin-Li 3.Shi, Yuan-Mei 4.Xu, Shu-Sheng 5.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 6.Nanjing Xiaozhuang Univ, Dept Phys & Elect Engn, Nanjing 211171, Jiangsu, Peoples R China 7.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China 8.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JL,Shi, YM,Xu, SS,et al. Proper time regularization at finite quark chemical potential[J]. MODERN PHYSICS LETTERS A,2016,31(14):1650086.
APA	Zhang, JL,Shi, YM,Xu, SS,&Zong, HS.(2016).Proper time regularization at finite quark chemical potential.MODERN PHYSICS LETTERS A,31(14),1650086.
MLA	Zhang, JL,et al."Proper time regularization at finite quark chemical potential".MODERN PHYSICS LETTERS A 31.14(2016):1650086.