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Proper time regularization at finite quark chemical potential
Zhang, Jin-Li1; Shi, Yuan-Mei1,2; Xu, Shu-Sheng1,4; Zong, Hong-Shi1,3,4
2016-05-10
Source PublicationMODERN PHYSICS LETTERS A
Volume31Issue:14
AbstractIn 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.
KeywordProper-time Regularization Chiral Phase Transition Crossover
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1142/S0217732316500863
WOS KeywordCHIRAL PHASE-TRANSITION ; JONA-LASINIO MODEL ; NJL-MODEL ; DYNAMICAL MODEL ; WIGNER SOLUTION ; MAGNETIC-FIELD ; QCD ; SOLITON ; MASS ; SUPERCONDUCTIVITY
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
WOS IDWOS:000377028300005
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16227
Collection行星科学与深空探测实验室
Affiliation1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Xiaozhuang Univ, Dept Phys & Elect Engn, Nanjing 211171, Jiangsu, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jin-Li,Shi, Yuan-Mei,Xu, Shu-Sheng,et al. Proper time regularization at finite quark chemical potential[J]. MODERN PHYSICS LETTERS A,2016,31(14).
APA Zhang, Jin-Li,Shi, Yuan-Mei,Xu, Shu-Sheng,&Zong, Hong-Shi.(2016).Proper time regularization at finite quark chemical potential.MODERN PHYSICS LETTERS A,31(14).
MLA Zhang, Jin-Li,et al."Proper time regularization at finite quark chemical potential".MODERN PHYSICS LETTERS A 31.14(2016).
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