scholarly journals Isospin chemical potential and the QCD phase diagram at nonzero temperature and baryon chemical potential

2003 ◽  
Vol 564 (3-4) ◽  
pp. 212-216 ◽  
Author(s):  
D Toublan ◽  
J.B Kogut
Keyword(s):  
Phase Diagram ◽  
Chemical Potential ◽  
Nonzero Temperature ◽  
Baryon Chemical Potential ◽  
Qcd Phase Diagram

scholarly journals Using the Linear Sigma Model with quarks to describe the QCD phase diagram and to locate the critical end point

2018 ◽  
Vol 172 ◽  
pp. 08002
Author(s):  
Alejandro Ayala ◽  
Jorge David Castaño-Yepes ◽  
José Antonio Flores ◽  
Saúl Hernández ◽  
Luis Hernández
Keyword(s):  
Phase Diagram ◽  
Critical Temperature ◽  
Sigma Model ◽  
Chemical Potential ◽  
Linear Sigma Model ◽  
Transition Line ◽  
Baryon Chemical Potential ◽  
First Order ◽  
Qcd Phase Diagram ◽  
Crossover Transition

We study the QCD phase diagram using the linear sigma model coupled to quarks. We compute the effective potential at finite temperature and quark chemical potential up to ring diagrams contribution. We show that, provided the values for the pseudo-critical temperature Tc = 155 MeV and critical baryon chemical potential μBc ≃ 1 GeV, together with the vacuum sigma and pion masses. The model couplings can be fixed and that these in turn help to locate the region where the crossover transition line becomes first order.

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 Imaginary Chemical Potential, NJL-Type Model and Confinement–Deconfinement Transition

Symmetry ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 562 ◽  
Author(s):  
Kouji Kashiwa
Keyword(s):  
Phase Diagram ◽  
Finite Temperature ◽  
Crucial Role ◽  
Chemical Potential ◽  
Type Model ◽  
Qcd Phase Diagram

In this review, we present of an overview of several interesting properties of QCD at finite imaginary chemical potential and those applications to exploring the QCD phase diagram. The most important properties of QCD at a finite imaginary chemical potential are the Roberge–Weiss periodicity and the transition. We summarize how these properties play a crucial role in understanding QCD properties at finite temperature and density. This review covers several topics in the investigation of the QCD phase diagram based on the imaginary chemical potential.

Mapping the QCD phase diagram with susceptibilities of conserved charges within Nambu–Jona-Lasinio model

2017 ◽  
Vol 32 (11) ◽  
pp. 1750061 ◽  
Author(s):  
Wenkai Fan ◽  
Xiaofeng Luo ◽  
Hong-Shi Zong
Keyword(s):  
Strange Quark ◽  
Collision Energy ◽  
Chemical Potential ◽  
Baryon Number ◽  
Baryon Chemical Potential ◽  
Experiment Data ◽  
High Collision Energy ◽  
Qcd Phase Diagram ◽  
Strange Quark Mass ◽  
Different Temperatures

We evaluate the second to fourth-order baryon, charge and strangeness susceptibilities near a chiral critical point using the Nambu–Jona-Lasinio model under different temperatures and baryon chemical potential. Baryon number susceptibilities are found to be of the greatest magnitude, offering the strongest signal. Whereas the strangeness susceptibilities have the smallest divergence dominating area, owing to the large strange quark mass. We also make an attempt to compare our results with experiment data. The trend at high collision energy is found to be consistent between theory and experiment. The model calculation predicts more complex behavior at low collision energies, near the postulated critical end point.

scholarly journals Effects of Superstatistics on the Location of the Effective QCD Critical End Point

2019 ◽  
Vol 64 (8) ◽  
pp. 665
Author(s):  
A. Ayala ◽  
M. Hentschinski ◽  
L. A. Hernández ◽  
M. Loewe ◽  
R. Zamora
Keyword(s):  
Phase Diagram ◽  
Chemical Potential ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Chiral Symmetry Restoration ◽  
Interaction Volume ◽  
Qcd Phase Diagram ◽  
End Point ◽  
Ion Collisions ◽  
Effective Description

Effects of the partial thermalization during the chiral symmetry restoration at the finite temperature and quark chemical potential are considered for the position of the critical end point in an effective description of the QCD phase diagram. We find that these effects cause the critical end point to be displaced toward larger values of the temperature and lower values of the quark chemical potential, as compared to the case where the system can be regarded as completely thermalized. These effects may be important for relativistic heavy ion collisions, where the number of subsystems making up the whole interaction volume can be linked to the finite number of participants in the reaction.

scholarly journals Study of the QCD phase diagram with a nonzero chiral chemical potential

2016 ◽  
Vol 93 (3) ◽  
Author(s):  
V. V. Braguta ◽  
E.-M. Ilgenfritz ◽  
A. Yu. Kotov ◽  
B. Petersson ◽  
S. A. Skinderev
Keyword(s):  
Phase Diagram ◽  
Chemical Potential ◽  
Qcd Phase Diagram

scholarly journals Importance of Imaginary Chemical Potential for QCD Phase Diagram in the PNJL Model

2010 ◽  
Vol 186 ◽  
pp. 540-544
Author(s):  
Kouji Kashiwa ◽  
Hiroaki Kouno ◽  
Takeshi Matsumoto ◽  
Yuji Sakai ◽  
Masanobu Yahiro
Keyword(s):  
Phase Diagram ◽  
Chemical Potential ◽  
Qcd Phase Diagram ◽  
Pnjl Model
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