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We investigate the effects of rotation on deconfinement and chiral phase transitions in the framework of dynamical holographic QCD model. Instead of transforming to the rotating system by Lorentz boost, we construct an anisotropic…

High Energy Physics - Phenomenology · Physics 2024-05-13 Yidian Chen , Xun Chen , Danning Li , Mei Huang

We study the phase diagram of strongly interacting matter including the inhomogeneous phase of Chiral Density Waves (CDW) within the Polyakov loop extended Nambu-Jona-Lasinio (PNJL) model. We discuss the phase structure taking into account…

High Energy Physics - Phenomenology · Physics 2011-06-30 Tomasz L. Partyka , Mariusz Sadzikowski

Many Polyakov loop models can be written in a dual formulation which is free of sign problem even when a non-vanishing baryon chemical potential is introduced in the action. Here, results of numerical simulations of a dual representation of…

High Energy Physics - Lattice · Physics 2021-02-09 Oleg Borisenko , Volodymyr Chelnokov , Emanuele Mendicelli , Alessandro Papa

We investigate, using a chiral effective model, the quark spectrum in the critical region of the chiral transition focusing on the effect of the possible mesonic excitations in the quark-gluon plasma phase. We find that there appears a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Masakiyo Kitazawa , Teiji Kunihiro , Yukio Nemoto

We analyse the role of the quark backreaction on the gauge-field dynamics and its impact on the Polyakov-loop potential. Based on our analysis we construct an improved Polyakov-loop potential that can be used in future model studies. In the…

High Energy Physics - Phenomenology · Physics 2013-03-18 Rainer Stiele , Lisa M. Haas , Jens Braun , Jan M. Pawlowski , Juergen Schaffner-Bielich

We study the nonperturbative QCD vacuum with two light quarks at finite temperature in the framework of hadron resonance gas. Temperature dependence of the quark and gluon condensates in the confined phase are obtained. We demonstrate that…

High Energy Physics - Phenomenology · Physics 2009-11-10 Nikita O. Agasian , Sergei M. Fedorov

Quark-Gluon plasmas produced in relativistic heavy-ion collisions quickly expand and cool, entering a phase consisting of multiple interacting hadronic resonances just below the QCD deconfinement temperature. The transport properties of…

Nuclear Theory · Physics 2014-09-02 Paul Romatschke , Scott Pratt

We investigate the hadronic cooling of a quark droplet within a microscopic model. The color flux tube approach is used to describe the hadronization of the quark phase. The model reproduces experimental particle ratios equally well…

Nuclear Theory · Physics 2007-05-23 M. Hofmann , J. M. Eisenberg , S. Scherer , M. Bleicher , L. Neise , H. Stöcker , W. Greiner

This is a review of strong coupling approaches to grasp the nature of the phase transition in finite temperature and density QCD. We commence with classics of the center symmetry and the Polyakov loop in pure gauge theories. The effective…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kenji Fukushima

In high energy collisions, a dense, strongly interacting medium could be created, the quark gluon plasma. In rapid expansion, from the soup of quarks and gluons a gas of resonance and stable particles is formed at the chemical freeze-out…

High Energy Physics - Phenomenology · Physics 2022-10-14 Sandor Lokos , Boris Tomasik

We show how the quark free energy can be determined from a string and the Hadron Resonance Gas model with one heavy quark below the de-confinement phase transition. We discuss the interesting problem of identification of degrees of freedom…

High Energy Physics - Phenomenology · Physics 2025-01-10 E. Ruiz Arriola , L. L. Salcedo , E. Megias

The QCD phase diagram is studied, at finite magnetic field. Our calculations are based on the QCD effective model, the SU($3$) Polyakov linear sigma model (PLSM), in which the chiral symmetry is integrated in the hadron phase and in the…

High Energy Physics - Phenomenology · Physics 2021-07-05 Abdel Nasser Tawfik , Abdel Magied Diab

The characteristics of the chiral phase transition are analyzed within the framework of chiral quark models with nonlocal interactions in the mean field approximation. In the chiral limit, we develop a semi-analytic framework which allows…

High Energy Physics - Phenomenology · Physics 2009-11-10 D. Gomez Dumm , N. N. Scoccola

In the current work an equation of state model with a first-order phase transition for astrophysical applications is presented. The model is based on a two-phase approach for quark-hadron phase transitions, which leads by construction to a…

Nuclear Theory · Physics 2021-01-26 Niels-Uwe F. Bastian

In nucleus-nucleus collisions at relativistic energies a new kind of matter is created, the Quark-Gluon Plasma (QGP). The phase diagram of such matter and the chemical freeze-out points will be presented in connection to the pseudo-critical…

High Energy Physics - Phenomenology · Physics 2022-12-27 Peter Braun-Munzinger , Anar Rustamov , Johanna Stachel

We study the quark hadron phase transition in the framework of massive gravity. We show that the modification of the FRW cosmological equations leads to the quark hadron phase transition in the early massive Universe. Using numerical…

General Relativity and Quantum Cosmology · Physics 2016-09-01 K. Atazadeh

A standard picture in cosmology has been emerging over the past decade in which a phase transition, associated with chiral symmetry breaking after the electroweak transition, has occurred at approximately $10^{-6}$ seconds after the Big…

General Relativity and Quantum Cosmology · Physics 2011-04-04 K. Atazadeh , A. M. Ghezelbash , H. R. Sepangi

We discuss recent data on particle production with emphasis on the degree of thermal and chemical equilibration achieved. The data are interpreted in terms of a resonance gas model. The phase boundary constructed between the resonance gas…

Nuclear Theory · Physics 2009-10-30 P. Braun-Munzinger , J. Stachel

We investigate three-colour QCD thermodynamics at finite quark chemical potential. Lattice QCD results are compared with a generalized Nambu Jona-Lasinio model in which quarks couple simultaneously to the chiral condensate and to a…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Ratti , M. A. Thaler , W. Weise

The two-Equation of State (Two-EoS) model is used to describe the hadron-quark phase transition in dense-hot matter formed in heavy-ion collisions. The non-linear Walecka model is used to describe the hadronic phase. For the quark phase,…

Nuclear Theory · Physics 2015-05-28 G. Y. Shao , M. Di Toro , V. Greco , M. Colonna , S. Plumari , B. Liu , Y. X. Liu