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Current knowledge of the finite-density QCD equation of state from first principles is limited to a Taylor expansion in the baryonic chemical potential around $\mu_B=0$. By means of a scaling form for the equation of state of the 3D Ising…

高能物理 - 唯象学 · 物理学 2019-02-20 Paolo Parotto

A quasi-particle model is presented which describes QCD lattice results for the 0, 2 and 4 quark-flavor equation of state. The results are mapped to finite baryo-chemical potentials. As an application of the model we make a prediction of…

核理论 · 物理学 2008-11-26 B. Kämpfer , A. Peshier , G. Soff

As an important set of thermodynamic quantities, knowledge of the equation of state over a broad range of temperatures and chemical potentials in the QCD phase diagram is crucial for our understanding of strongly-interacting matter. There…

高能物理 - 唯象学 · 物理学 2024-03-01 Jamie M. Karthein

We propose a novel quasiparticle interpretation of the equation of state of deconfined QCD at finite temperature. Using appropriate thermal masses, we introduce a phenomenological parametrization of the onset of confinement in the vicinity…

高能物理 - 唯象学 · 物理学 2007-05-23 R. A. Schneider , T. Renk , W. Weise

We present realistic equations of state for QCD matter at vanishing net-baryon density which embed recent lattice QCD results at high temperatures combined with a hadron resonance gas model in the low-temperature, confined phase. In the…

高能物理 - 唯象学 · 物理学 2014-07-17 M. Bluhm , P. Alba , W. Alberico , A. Beraudo , C. Ratti

We propose a novel quasiparticle interpretation of the equation of state of deconfined QCD at finite temperature. Using appropriate thermal masses, we introduce a phenomenological parametrization of the onset of confinement in the vicinity…

高能物理 - 唯象学 · 物理学 2009-11-07 R. A. Schneider , W. Weise

We construct an equation of state for Quantum Chromodynamics (QCD) at finite temperature and chemical potentials for baryon number $B$, electric charge $Q$ and strangeness $S$. We use the Taylor expansion method, up to the fourth power for…

高能物理 - 唯象学 · 物理学 2020-01-23 J. Noronha-Hostler , P. Parotto , C. Ratti , J. M. Stafford

Whether Quantum Chromodynamics (QCD) exhibits a phase transition at finite temperature and density is an open question. It is important for hydrodynamic modeling of heavy ion collisions and neutron star mergers. Lattice QCD simulations have…

核理论 · 物理学 2022-10-19 J. I. Kapusta , T. Welle

Intensive search for a proper and realistic equations of state (EOS) is still continued for studying the phase diagram existing between quark gluon plasma (QGP) and hadron gas (HG) phases. Lattice calculations provide such EOS for the…

高能物理 - 唯象学 · 物理学 2012-06-12 P. K. Srivastava , C. P. Singh

Using quasiparticle models and imposing thermodynamic consistency, lattice data for the equation of state of deconfined QCD can be mapped to finite chemical potential. We consider a refinement of existing simple massive quasiparticle models…

高能物理 - 唯象学 · 物理学 2009-11-10 A. Rebhan , P. Romatschke

A unified chiral mean field approach is presented for QCD thermodynamics in a wide range of temperatures and densities. The model simultaneously gives a satisfactory description of lattice QCD thermodynamics and fulfills nuclear matter and…

高能物理 - 唯象学 · 物理学 2019-02-20 Anton Motornenko , Volodymyr Vovchenko , Jan Steinheimer , Stefan Schramm , Horst Stoecker

Our quasi-particle model for deconfined matter near T_c is reviewed. The extrapolation of lattice QCD data to a finite baryo-chemical potential is discussed. Determined by the chiral transition temperature T_c, the resulting equation of…

高能物理 - 唯象学 · 物理学 2017-08-23 B. Kampfer , A. Peshier , G. Soff

The thermodynamic behavior of QCD matter at high temperature is currently studied by lattice QCD theory. The main features are the fast rise of the energy density $\epsilon$ around the critical temperature $T_c$ and the large trace anomaly…

高能物理 - 唯象学 · 物理学 2015-05-27 Salvatore Plumari , Wanda M. Alberico , Vincenzo Greco , Claudia Ratti

Assuming a first-order chiral transition scenario, we study the process of phase conversion driven by homogeneous nucleation. We adopt a quasiparticle model whose parameters are fit to lattice QCD data to describe the pressure at high…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Bessa , E. S. Fraga

We use the available two different self-consistent formulations of quasiparticle models and extend their applications for the description of quark gluon plasma (QGP) at non-vanishing baryon chemical potentials. The thermodynamical…

高能物理 - 唯象学 · 物理学 2015-03-17 P. K. Srivastava , S. K. Tiwari , C. P. Singh

The thermodynamics and critical exponents and amplitudes of high temperature and dense matter near the chiral critical point are studied. The parameterized equation of state matches on to that calculated with lattice QCD at zero chemical…

核理论 · 物理学 2010-05-28 J. I. Kapusta

We construct a family of equations of state for QCD in the temperature range 30 MeV $\leq T\leq$ 800 MeV and in the chemical potential range $0\leq \mu_B \leq$ 450 MeV. These equations of state match available lattice QCD results up to…

We construct an effective model for the QCD equation of state, taking into account chiral symmetry restoration as well as the deconfinement phase transition. The correct asymptotic degrees of freedom at the high and low temperature limits…

高能物理 - 唯象学 · 物理学 2011-01-28 J. Steinheimer , S. Schramm , H. Stöcker

We review the equation of state of QCD matter at finite densities. We discuss the construction of the equation of state with net baryon number, electric charge, and strangeness using the results of lattice QCD simulations and hadron…

核理论 · 物理学 2021-04-21 Akihiko Monnai , Björn Schenke , Chun Shen

In this report we consider the numerical simulations at finite temperature using lattice QCD data for the computation of the thermodynamical quantities including the pressure, energy density and the entropy density. These physical…

高能物理 - 唯象学 · 物理学 2008-11-26 David E. Miller