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We present algorithms to solve relativistic hydrodynamics in 3+1--dimensional situations without apparent symmetry to simplify the solution. In simulations of heavy--ion collisions, these numerical schemes have to deal with the physical…

核理论 · 物理学 2009-10-28 Dirk H. Rischke , Stefan Bernard , Joachim A. Maruhn

We first review the production and the possible chemical equilibration of strange particles at CERN-SPS energies within a microscopic hadronic transport calculation. It is shown in particular that the strange quarks are produced initially…

核理论 · 物理学 2009-11-06 Carsten Greiner

We study the hadron-quark phase transition with the finite size effects at finite temperature. For the hadron phase, we adopt a realistic equation of state in the framework of the Brueckner-Hartree-Fock theory including hyperons. The…

核理论 · 物理学 2009-12-30 Nobutoshi Yasutake , Toshiki Maruyama , Toshitaka Tatsumi

By using gravity/gauge correspondence, we employ an Einstein-Maxwell-Dilaton model to compute the equilibrium and out-of-equilibrium properties of a hot and baryon rich strongly coupled quark-gluon plasma. The family of 5-dimensional…

Using a Hagedorn resonance gas picture and quark-hadron duality we estimate the dilepton emission rate in the vicinity of the QCD deconfinement phase transition. The result is then used to calculate a dilepton spectrum in ultrarelativistic…

高能物理 - 唯象学 · 物理学 2011-09-13 A. V. Leonidov , P. V. Ruuskanen

The dissipative corrections to the hydrodynamic equations describing the evolution of energy-momentum tensor and parton densities are derived in a simple way using the scaling approximation for the expanding quark gluon plasma at finite…

高能物理 - 唯象学 · 物理学 2011-07-19 D. Dutta , A. K. Mohanty , K. Kumar , R. K. Choudhury

We propose an algebraic form for the density of states of quarks and gluons in a Quark-Gluon Plasma (QGP) fireball in quasi-equilibrium with a hadronic medium as $\rho(k)= \frac {\alpha}{k} + {\beta}k + {\delta}k^{2}$, and determine the…

高能物理 - 唯象学 · 物理学 2011-03-28 R. Ramanathan , Agam K. Jha , S. S. Singh

We discuss how the dynamics of an exploding hot fireball of quark--gluon matter impacts the actual phase transition conditions between the deconfined and confined state of matter. We survey the chemical conditions prevailing at…

核理论 · 物理学 2009-11-11 J. Rafelski , J. Letessier

The energy densities achieved during central collisions of large nuclei at Brookhaven's AGS may be high enough to allow the formation of quark--gluon plasma. Calculations based on relativistic nucleation theory suggest that rare events,…

核理论 · 物理学 2009-09-25 J. I. Kapusta , R. Venugopalan , A. P. Vischer

We study the kinetics of antibaryon production and annihilation in an expanding system, assuming that it is spatially homogeneous and chemically equilibrated at the initial stage. By solving simplified rate equations for (anti)baryon…

高能物理 - 唯象学 · 物理学 2013-09-04 L. M. Satarov , I. N. Mishustin , W. Greiner

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

Collisions between heavy atomic nuclei at ultra-relativistic energies are carried out at particle colliders to produce the quark-gluon plasma, a state of matter where quarks and gluons are not confined into hadrons, and colour degrees of…

The realistic equation of state of strongly interacting matter, that has been successfully applied in the recent hydrodynamic studies of hadron production in relativistic heavy-ion collisions at RHIC, is used in the Friedmann equation to…

核理论 · 物理学 2011-03-02 Wojciech Florkowski

We describe the quark gluon plasma (QGP) as a thermalized quark-gluon system, the thermalized QGP phase of QCD. The hadronization of the thermalized QGP phase is given in a way resembling a coalescence model with correlated quarks and…

高能物理 - 唯象学 · 物理学 2014-11-17 A. Ya. Berdnikov , Ya. A. Berdnikov , A. N. Ivanov , V. A. Ivanova , V. F. Kosmach , V. M. Samsonov , N. I. Troitskaya

The strongly interacting Quark-Gluon-Plasma (sQGP) created in relativistic nucleus-nucleus collisions, can be described by hydrodynamic models. Low energy hadrons are created after the so called freeze-out of this medium, thus their…

核理论 · 物理学 2015-03-20 M. Csanad

We calculate the thermodynamic potential of bubbles of hadrons embedded in quark-gluon plasma, and of droplets of quark-gluon plasma embedded in hadron phase. This is a generalization of our previous results to the case of non-zero chemical…

高能物理 - 唯象学 · 物理学 2009-10-31 Gregers Neergaard , Jes Madsen

The region of large net-baryon densities in the QCD phase diagram is expected to exhibit a first-order phase transition. Experimentally, its study will be one of the primaryobjectives for the upcoming FAIR accelerator. We model the…

高能物理 - 唯象学 · 物理学 2015-06-23 Christoph Herold , Marlene Nahrgang , Yupeng Yan , Chinorat Kobdaj

Aiming at relativistic description of gluons in hadrons, the renormalization group procedure for effective particles (RGPEP) is applied to baryons in QCD of heavy quarks. The baryon eigenvalue problem is posed using the Fock-space…

高能物理 - 唯象学 · 物理学 2018-12-06 Kamil Serafin , María Gómez-Rocha , Jai More , Stanisław D. Głazek

Quantum Chromodynamics (QCD) is expected to have a first order phase transition between the confined hadron gas and the deconfined quark gluon plasma at high baryon densities. This will result in phase boundary effects in the metastable and…

高能物理 - 唯象学 · 物理学 2024-11-11 Joseph I. Kapusta , Mayank Singh , Thomas Welle

We show how the measured particle ratios at RHIC can be used to provide non-trivial information about the critical temperature of the QCD phase transition. This is obtained by including the effects of highly massive Hagedorn resonances on…

核理论 · 物理学 2014-11-20 J. Noronha-Hostler , J. Noronha , C. Greiner