Phase transition in the hadron gas model

Gorenstein, M. I.; Petrov, V. K.; Zinovjev, G.

doi:10.1016/0370-2693(81)90546-3

“…Hadrons are not point particles, and repulsive interactions can be implemented via an excluded volume approximation whereby the volume available for the hadrons to move in is reduced by the volume they occupy, as first suggested in [6][7][8]. There are at least two thermodynamically self-consistent versions of this model.…”

Section: Excluded Volume Modelsmentioning

confidence: 99%

Matching excluded-volume hadron-resonance gas models and perturbative QCD to lattice calculations

Albright

¹

,

Kapusta

²

,

Young

³

2014

View full text Add to dashboard Cite

We match three hadronic equations of state at low energy densities to a perturbatively computed equation of state of quarks and gluons at high energy densities. One of them includes all known hadrons treated as point particles, which approximates attractive interactions among hadrons. The other two include, in addition, repulsive interactions in the form of excluded volumes occupied by the hadrons. A switching function is employed to make the crossover transition from one phase to another without introducing a thermodynamic phase transition. A chi-square fit to accurate lattice calculations with temperature 100 < T < 1000 MeV determines the parameters. These parameters quantify the behavior of the QCD running gauge coupling and the hard core radius of protons and neutrons, which turns out to be 0.62 ± 0.04 fm. The most physically reasonable models include the excluded volume effect. Not only do they include the effects of attractive and repulsive interactions among hadrons, but they also achieve better agreement with lattice QCD calculations of the equation of state. The equations of state constructed in this paper do not result in a phase transition, at least not for the temperatures and baryon chemical potentials investigated. It remains to be seen how well these equations of state will represent experimental data on high energy heavy ion collisions when implemented in hydrodynamic simulations.

show abstract

“…[15]; the model of the phase boundary defined by MIT bags was continued by Gorenstein and collaborators, see Refs. [205,206].…”

Section: Constituents Of Finite Sizementioning

confidence: 99%

Melting Hadrons, Boiling Quarks

Rafelski

¹

2016

Melting Hadrons, Boiling Quarks - From Hagedorn Temperature to Ultra-Relativistic Heavy-Ion Collisions at CERN

View full text Add to dashboard Cite

Abstract. In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed questions about properties of hadronic matter in different phases, phase transition and the exploration of quark-gluon plasma (QGP). The historical context of the discovery of QGP is shown and the role of strangeness and strange antibaryon signature of QGP illustrated. In the second part I discuss the corresponding theoretical ideas and show how experimental results can be used to describe the properties of QGP at hadronization. The material of this review is complemented by two early and unpublished reports containing the prediction of the different forms of hadron matter, and of the formation of QGP in relativistic heavy ion collisions, including the discussion of strangeness, and in particular strange antibaryon signature of QGP.

show abstract

“…[15]; the model of the phase boundary defined by the MIT bags was continued by Gorenstein and collaborations, see refs. [205,206].…”

Section: Constituents Of Finite Sizementioning

confidence: 99%

Melting hadrons, boiling quarks

Rafelski

¹

2015

View full text Add to dashboard Cite

Abstract. In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed questions about properties of hadronic matter in different phases, phase transition and the exploration of quark-gluon plasma (QGP). The historical context of the discovery of QGP is shown and the role of strangeness and strange antibaryon signature of QGP illustrated. In the second part I discuss the corresponding theoretical ideas and show how experimental results can be used to describe the properties of QGP at hadronization. The material of this review is complemented by two early and unpublished reports containing the prediction of the different forms of hadron matter, and of the formation of QGP in relativistic heavy ion collisions, including the discussion of strangeness, and in particular strange antibaryon signature of QGP.

show abstract

Phase transition in the hadron gas model

Cited by 123 publications

References 3 publications

Matching excluded-volume hadron-resonance gas models and perturbative QCD to lattice calculations

Matching excluded-volume hadron-resonance gas models and perturbative QCD to lattice calculations

Melting Hadrons, Boiling Quarks

Melting hadrons, boiling quarks

Contact Info

Product

Resources

About