Hadron-resonance gas at freeze-out: Reminder on the importance of repulsive interactions

2012/08/31 by Viktor Begun, V. V. Begun, M. Gaździcki +1 · 60 citations
Physics and Astronomy · #Baryon #Baryon number #Cosmology and Gravitation Theories #Hadron #High-Energy Particle Collisions Research #Meson #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #hep-ex #hep-ph #nucl-th #van der Waals force

paper · pdf · doi:10.1103/physrevc.88.024902

published in Physical Review C 88(2) (American Institute of Physics)

openalex publication_date 2013/08/05 · arxiv created 2013/08/27 · arxiv updated 2013/08/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

An influence of the repulsive interactions on matter properties is considered within the excluded volume van der Waals hadron-resonance gas model. Quantitative results are presented for matter at the chemical freeze-out in central nucleus-nucleus collisions at relativistic energies. In particular, it is shown that repulsive interactions connected to the nonzero size of created particles lead to a significant decrease of the collision energy at which the net-baryon density has a maximum. A position of the transition point from baryon-to-meson dominated matter depends on the difference between baryon and meson hard-core radiuses.

Citations

• J/ψSuppression at Forward Rapidity in Pb-Pb Collisions atsNN=2.76 TeV
• Particle number fluctuations in a canonical ensemble
• Transition from baryonic to mesonic freeze-out
• The nuclotron-based ion collider facility (NICA) at JINR: new prospects for heavy ion collisions and spin physics
• Event-by-event simulation of the three-dimensional hydrodynamic evolution from flux tube initial conditions in ultrarelativistic heavy ion collisions
• Pion and kaon production in centralPb+Pbcollisions at20Aand30AGeV: Evidence for the onset of deconfinement
• Hadron production in Au–Au collisions at RHIC
• Strangeness in relativistic heavy ion collisions
• Recent Progress in Quantum Hadrodynamics
• Hydrodynamic modeling of the deconfinement phase transition in heavy-ion collisions in the NICA–FAIR energy domain
• Multiplicity fluctuations in relativistic nuclear collisions: Statistical model versus experimental data

Cited by

• Hadron resonance gas with van der Waals interactions