Thermodynamics of a three-flavor nonlocal Polyakov-Nambu-Jona-Lasinio model

被引：61
|
作者：
Hell, T. [1 ]
Roessner, S. [1 ]
Cristoforetti, M. [1 ]
Weise, W. [1 ]
机构：
[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany
来源：
PHYSICAL REVIEW D | 2010年 / 81卷 / 07期
关键词：
DYSON-SCHWINGER EQUATIONS; SU(3) NAMBU; PHASE-TRANSITION; DYNAMICAL MODEL; MONTE-CARLO; QUARK; QCD; TEMPERATURE; HADRONS; ANALOGY;
D O I：
10.1103/PhysRevD.81.074034
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The present work generalizes a nonlocal version of the Polyakov-loop-extended Nambu and Jona-Lasinio (PNJL) model to the case of three active quark flavors, with inclusion of the axial U(1) anomaly. Gluon dynamics is incorporated through a gluonic background field, expressed in terms of the Polyakov loop. The thermodynamics of the nonlocal PNJL model accounts for both chiral and deconfinement transitions. Our results obtained in mean-field approximation are compared to lattice QCD results for N-f = 2 + 1 quark flavors. Additional pionic and kaonic contributions to the pressure are calculated in random phase approximation. Finally, this nonlocal three-flavor PNJL model is applied to the finite density region of the QCD phase diagram. It is confirmed that the existence and location of a critical point in this phase diagram depend sensitively on the strength of the axial U(1) breaking interaction.
引用
收藏
页数：21
相关论文
共 50 条
  • [31] Thermodynamics of the three-flavor Nambu-Jona-Lasinio model: Chiral symmetry breaking and color superconductivity
    Gastineau, F
    Nebauer, R
    Aichelin, J
    PHYSICAL REVIEW C, 2002, 65 (04): : 12
  • [32] QUARKONIUM DISSOCIATION IN A POLYAKOV-NAMBU-JONA-LASINIO QUARK PLASMA
    Jankowski, Jakub
    Blaschke, David
    Grigorian, Hovik
    EMMI WORKSHOP AND 26TH MAX BORN SYMPOSIUM: THREE DAYS OF STRONG INTERACTIONS, 2010, 3 (03): : 747 - +
  • [33] Theta vacuum and entanglement interaction in the three-flavor Polyakov-loop extended Nambu-Jona-Lasinio model
    Sasaki, Takahiro
    Takahashi, Junichi
    Sakai, Yuji
    Kouno, Hiroaki
    Yahiro, Masanobu
    PHYSICAL REVIEW D, 2012, 85 (05):
  • [34] THE QCD CRITICAL END POINT IN THE CONTEXT OF THE POLYAKOV-NAMBU-JONA-LASINIO MODEL
    Costa, P.
    de Sousa, C. A.
    Ruivo, M. C.
    Hansen, H.
    STRANGENESS IN QUARK MATTER 2011, 2012, 5 (02): : 523 - +
  • [35] Shear viscosity and phase diagram from Polyakov-Nambu-Jona-Lasinio model
    Ghosh, Sanjay K.
    Raha, Sibaji
    Ray, Rajarshi
    Saha, Kinkar
    Upadhaya, Sudipa
    PHYSICAL REVIEW D, 2015, 91 (05):
  • [36] Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov-Nambu-Jona-Lasinio models
    Benic, S.
    Blaschke, D.
    Contrera, G. A.
    Horvatic, D.
    PHYSICAL REVIEW D, 2014, 89 (01):
  • [37] D mesons at finite temperature and density in the Polyakov-Nambu-Jona-Lasinio model
    Blaschke, D.
    Costa, P.
    Kalinovsky, Yu. L.
    PHYSICAL REVIEW D, 2012, 85 (03):
  • [38] Color neutrality effects in the phase diagram of the Polyakov-Nambu-Jona-Lasinio model
    Dumm, D. Gomez
    Blaschke, D. B.
    Grunfeld, A. G.
    Scoccola, N. N.
    PHYSICAL REVIEW D, 2008, 78 (11):
  • [39] Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
    Contrera G.A.
    Grunfeld A.G.
    Blaschke D.B.
    Physics of Particles and Nuclei Letters, 2014, 11 (4) : 342 - 351
  • [40] Polyakov-Nambu-Jona-Lasinio model for adjoint fermions with periodic boundary conditions
    Nishimura, Hiromichi
    Ogilvie, Michael C.
    PHYSICAL REVIEW D, 2010, 81 (01):
12345