scholarly journals QCD phase diagram with chiral imbalance in NJL model: duality and lattice QCD results

2019 ◽  
Vol 1390 ◽  
pp. 012015 ◽  
Author(s):  
T G Khunjua ◽  
K G Klimenko ◽  
Roman N Zhokhov
Keyword(s):  
Phase Diagram ◽  
Lattice Qcd ◽  
Qcd Phase Diagram ◽  
Njl Model

scholarly journals QCD Phase Diagram in a Nonlocal SU(3) NJL Model with Lattice-Inspired Form Factors

2017 ◽  
Vol 45 ◽  
pp. 1760056
Author(s):  
María Florencia Izzo Villafañe ◽  
Juan Pablo Carlomagno ◽  
Daniel Gómez Dumm ◽  
Norberto N. Scoccola
Keyword(s):  
Phase Diagram ◽  
Lattice Qcd ◽  
Quark Model ◽  
Chemical Potential ◽  
Form Factors ◽  
Model Parameters ◽  
Nonzero Temperature ◽  
Qcd Phase Diagram ◽  
Njl Model

We study the QCD phase diagram in the framework of a nonlocal three-flavor quark model. We determine the model parameters from vacuum meson phenomenology, considering lattice QCD-inspired nonlocal form factors. Then we analyze the features of the deconfinement and chiral restoration transitions for systems at nonzero temperature and chemical potential.

scholarly journals On SU(3) Effective Models and Chiral Phase Transition

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Abdel Nasser Tawfik ◽  
Niseem Magdy
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Lattice Qcd ◽  
High Energy ◽  
Particle Model ◽  
Chiral Phase ◽  
Chiral Phase Transition ◽  
Thermal Models ◽  
Qcd Phase Diagram ◽  
Freeze Out

Sensitivity of Polyakov Nambu-Jona-Lasinio (PNJL) model and Polyakov linear sigma-model (PLSM) has been utilized in studying QCD phase-diagram. From quasi-particle model (QPM) a gluonic sector is integrated into LSM. The hadron resonance gas (HRG) model is used in calculating the thermal and dense dependence of quark-antiquark condensate. We review these four models with respect to their descriptions for the chiral phase transition. We analyze the chiral order parameter, normalized net-strange condensate, and chiral phase-diagram and compare the results with recent lattice calculations. We find that PLSM chiral boundary is located in upper band of the lattice QCD calculations and agree well with the freeze-out results deduced from various high-energy experiments and thermal models. Also, we find that the chiral temperature calculated from HRG is larger than that from PLSM. This is also larger than the freeze-out temperatures calculated in lattice QCD and deduced from experiments and thermal models. The corresponding temperature and chemical potential are very similar to that of PLSM. Although the results from PNJL and QLSM keep the same behavior, their chiral temperature is higher than that of PLSM and HRG. This might be interpreted due the very heavy quark masses implemented in both models.

scholarly journals The QCD Phase-Diagram Obtained from the NJL and the Extended-NJL Models for Quark and Hadron Phases

2017 ◽  
Vol 45 ◽  
pp. 1760059
Author(s):  
Clebson A. Graeff ◽  
Débora P. Menezes
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Equations Of State ◽  
Original Formulation ◽  
Qcd Phase Diagram ◽  
Hadron Phase ◽  
Vector Interaction ◽  
Njl Model ◽  
Quark Phase

We analyse the hadron/quark phase transition described by the Nambu-Jona-Lasinio (NJL) model [quark phase] and the extended Nambu-Jona-Lasinio model (eNJL) [hadron phase]. While the original formulation of the NJL model is not capable of describing hadronic properties due to its lack of confinement, it can be extended with a scalar-vector interaction so it exhibits this property, the so-called eNJL model. As part of this analysis, we obtain the equations of state within the SU(2) versions of both models for the hadron and the quark phases and determine the binodal surface.

scholarly journals Thermodynamics of strong-interaction matter from lattice QCD

2015 ◽  
Vol 24 (10) ◽  
pp. 1530007 ◽  
Author(s):  
Heng-Tong Ding ◽  
Frithjof Karsch ◽  
Swagato Mukherjee
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Magnetic Fields ◽  
Lattice Qcd ◽  
Strong Interaction ◽  
Dense Matter ◽  
Heavy Ion ◽  
Qcd Phase Diagram ◽  
Bulk Thermodynamics ◽  
Strong Interaction Matter

We review results from lattice QCD calculations on the thermodynamics of strong-interaction matter with emphasis on input these calculations can provide to the exploration of the phase diagram and properties of hot and dense matter created in heavy ion experiments. This review is organized in sections as follows: (1) Introduction, (2) QCD thermodynamics on the lattice, (3) QCD phase diagram at high temperature, (4) Bulk thermodynamics, (5) Fluctuations of conserved charges, (6) Transport properties, (7) Open heavy flavors and heavy quarkonia, (8) QCD in external magnetic fields, (9) Summary.

scholarly journals Lattice QCD Phase Diagram In and Away from the Strong Coupling Limit

2014 ◽  
Vol 113 (15) ◽  
Author(s):  
Ph. de Forcrand ◽  
J. Langelage ◽  
O. Philipsen ◽  
W. Unger
Keyword(s):  
Phase Diagram ◽  
Lattice Qcd ◽  
Strong Coupling ◽  
Strong Coupling Limit ◽  
Qcd Phase Diagram

scholarly journals Resonance states in an effective chiral hadronic model

Open Physics ◽  
2012 ◽  
Vol 10 (6) ◽  
Author(s):  
Philip Rau ◽  
Jan Steinheimer ◽  
Stefan Schramm ◽  
Horst Stöcker
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Lattice Qcd ◽  
Strange Quark ◽  
Vector Fields ◽  
Qcd Phase Diagram ◽  
Scalar And Vector Fields ◽  
Hadronic Resonances ◽  
Hadronic Model

AbstractWith an effective chiral flavour SU(3) model we show the effect of hadronic resonances on the QCD phase diagram. We state that varying the resonance couplings to the scalar and vector fields affects the order and location of the phase transition, the possible existence of a critical end point (CEP), and the thermodynamic properties. We present (strange) quark number susceptibilities at zero baryochemical potential and at three different points at the phase transition. Comparing results to lattice QCD, we state that reasonable large vector couplings limit the phase transition to a smooth crossover ruling out a CEP.

scholarly journals QCD Phase Diagram in Strong Coupling Lattice QCD with Polyakov Loops

2012 ◽  
Author(s):  
Kohtaroh Miura ◽  
Akira Ohnishi ◽  
Takashi Z. Nakano ◽  
Noboru Kawamoto
Keyword(s):  
Phase Diagram ◽  
Lattice Qcd ◽  
Strong Coupling ◽  
Qcd Phase Diagram ◽  
Polyakov Loops
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