English
Related papers

Related papers: Simultaneous chiral symmetry restoration and decon…

200 papers

We review the influence of a magnetic background on the phase diagram of strong interactions and how the chiral and deconfining transitions can be affected. First we summarize results for both transitions obtained in the framework of the…

High Energy Physics - Phenomenology · Physics 2015-06-11 Eduardo S. Fraga

We study the impact of steady, homogeneous, and external parallel electric and magnetic field strength ($eE\parallel eB$), on the chiral symmetry breaking-restoration and confinement-deconfinement phase transitions. We also sketch the phase…

High Energy Physics - Phenomenology · Physics 2021-09-01 Aftab Ahmad

We describe an extension of the hadronic SU(3) non-linear sigma model to include quarks. As a result, we obtain an effective model which interpolates between hadronic and quark degrees of freedom. The new parameters and the potential for…

Solar and Stellar Astrophysics · Physics 2010-04-20 V. A. Dexheimer , S. Schramm

We perform an improvement in a thermodynamical consistent model with density dependent quark masses ($m'_{u,d,s}$) by introducing effects of quark confinement/deconfinement phase transition, at high density regime and zero temperature, by…

High Energy Astrophysical Phenomena · Physics 2023-11-10 Isabella Marzola , Sérgio B. Duarte , César H. Lenzi , Odilon Lourenço

The Quark-Hadron Chiral Parity-Doublet model (Q$\chi$P) is applied to calculate compact star properties in the presence of a deconfinement phase transition. Within this model, a consistent description of nuclear matter properties, chiral…

Nuclear Theory · Physics 2017-12-20 A. Mukherjee , S. Schramm , J. Steinheimer , V. Dexheimer

In-medium chiral symmetry breaking in confining potential models of QCD is examined. Past attempts to analyse these models have been hampered by infrared divergences that appear at non-zero temperature. We argue that previous attempts to…

High Energy Physics - Phenomenology · Physics 2010-04-06 Pok Man Lo , Eric S. Swanson

The phenomena of deconfinement of hadronic matter into quark matter at high density, relevant to hybrid star (HS) cores, is studied in the present work. The effective chiral model describes the pure hadronic phase while for the quark phase…

Nuclear Theory · Physics 2021-09-13 Debashree Sen , Naosad Alam , Gargi Chaudhuri

Mapping the QCD phase boundary and locating critical end point still remains as an open problem in strong interaction physics. Predictions about the co-ordinates of the critical point in the $(T, \mu_B)$ plane, from different QCD motivated…

High Energy Physics - Phenomenology · Physics 2011-01-26 Partha Pratim Bhaduri , Victor Roy , A. K. Chaudhuri

This work presents an effective model for strongly interacting matter and the QCD equation of state (EoS). The model includes both hadron and quark degrees of freedom and takes into account the transition of chiral symmetry restoration as…

High Energy Physics - Phenomenology · Physics 2013-08-29 Philip Rau , Jan Steinheimer , Stefan Schramm , Horst Stöcker

We study the QCD phase diagram, in particular we study the critical points of the two main QCD phase transitions, confinement and chiral symmetry breaking. Confinement drives chiral symmetry breaking, and, due to the finite quark mass, at…

High Energy Physics - Phenomenology · Physics 2010-04-20 Pedro Bicudo

In this paper we discuss the QCD phase-transitions in the nontopological soliton model of quark confinement and explore possible astrophysical consequences. Our key idea is to look at quark stars (which are believed to exist since the quark…

Astrophysics · Physics 2007-05-23 Ilona Bednarek , Marek Biesiada , Ryszard Manka

We consider a holographic quark model where the confinement is a consequence of the quark condensate. Surprisingly, the equation of motion of our holographic model can be mapped to the old spin-less bag model. Both models correctly…

High Energy Physics - Theory · Physics 2020-05-01 Yoon-Seok Choun , Sang-Jin Sin

Recent lattice QCD studies at vanishing density exhibit the parity-doubling structure for the low-lying baryons around the chiral crossover temperature. This finding is likely an imprint of the chiral symmetry restoration in the baryonic…

Nuclear Theory · Physics 2018-12-21 Michał Marczenko , David Blaschke , Krzysztof Redlich , Chihiro Sasaki

A simple confining separable interaction Ansatz for the rainbow-ladder truncated QCD Dyson-Schwinger equations is used to implement chiral restoration and quark deconfinement in a study of $\bar q q$ meson states at finite temperature. The…

Nuclear Theory · Physics 2007-05-23 D. Blaschke , P. C. Tandy

I revisit the phase structure of hot and dense matter out of quarks and gluons with some historical consideration on the color deconfinement and chiral phase transitions. My goal is to make clear which part of the QCD phase diagram is under…

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

It is usual to study confinement via quantum chromodynamics (QCD) alone. The deconfinement transition of the pure gauge theory (i.e. with static quarks) is then characterized by the breaking of center symmetry. Center vortices offer an…

High Energy Physics - Lattice · Physics 2015-03-17 Sam R. Edwards , André Sternbeck , Lorenz von Smekal

In quantum chromodynamics with static quarks the confinement-deconfinement phase transition is connected to the spontaneous breaking of the global Z3 center symmetry. This symmetry is lost when one considers dynamical quarks. Owing to the…

High Energy Physics - Lattice · Physics 2013-11-18 Philipp Scior , Sam R. Edwards , Lorenz von Smekal

We study the equation of state (EOS) of quark matter at zero temperature, using the Color Dielectric Model (CDM) to describe confinement. Sensible results are obtained in the version of the CDM for which confinement is imposed {\it…

High Energy Physics - Phenomenology · Physics 2019-08-17 Alessandro Drago , Manuel Fiolhais , Ubaldo Tambini

We explore the consequences of an equation of state (EOS) obtained in a confining Dyson-Schwinger equation model of QCD for the structure and stability of nonstrange quark stars at finite-T, and compare the results with those obtained using…

Nuclear Theory · Physics 2010-03-04 D. Blaschke , H. Grigorian , G. Poghosyan , C. D. Roberts , S. Schmidt

We study the QCD phase diagram, in particular we study the critical points of the two main QCD phase transitions, confinement and chiral symmetry breaking. Confinement drives chiral symmetry breaking, and, due to the finite quark mass, at…

High Energy Physics - Phenomenology · Physics 2010-04-20 Pedro Bicudo