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题名: Proper time regularization at finite quark chemical potential
作者: Zhang, JL ;  Shi, YM ;  Xu, SS ;  Zong, HS
刊名: MODERN PHYSICS LETTERS A
出版日期: 2016
卷号: 31, 期号:14, 页码:1650086
关键词: Proper-time regularization ;  chiral phase transition ;  crossover
学科分类: Physics
DOI: http://dx.doi.org/10.1142/S0217732316500863
通讯作者: Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. ;  Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China. ;  Zong, HS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
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.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields ;  Physics, Mathematical
关键词[WOS]: CHIRAL PHASE-TRANSITION ;  JONA-LASINIO MODEL ;  NJL-MODEL ;  DYNAMICAL MODEL ;  WIGNER SOLUTION ;  MAGNETIC-FIELD ;  QCD ;  SOLITON ;  MASS ;  SUPERCONDUCTIVITY
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11275097, 11475085, 11535005] ;  National Natural Science Foundation of Jiangsu Province of China [BK20130078]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21653
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
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.
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