Transport model study of nuclear stopping in heavy ion collisions over an energy range from 0.09A GeV to 160A GeV

Abstract

Nuclear stopping in the heavy ion collisions over a beam energy range from SIS, AGS up to SPS is studied in the framework of the modified UrQMD transport model, in which mean field potentials of both formed and "pre-formed" hadrons (from string fragmentation) and medium modified nucleon-nucleon elastic cross sections are considered. It is found that the nuclear stopping is influenced by both the stiffness of the equation of state and the medium modifications of nucleon-nucleon cross sections at SIS energies. At the high SPS energies, the two-bump structure is shown in the experimental rapidity distribution of free protons, which can be understood with the consideration of the "pre-formed" hadron potentials.

arXiv comment15 pages, 7 figures

References in corpus (24)

• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• Determination of the Equation of State of Dense Matter
• Strangeness dynamics and transverse pressure in relativistic nucleus-nucleus collisions
• Nuclear Flow Excitation Function
• Azimuthal correlations of pions in relativistic heavy ion collisions at 1 GeV/nucl.
• Longitudinal Flow of Protons from 2-8 AGeV Central Au+Au Collisions
• Systematics of Stopping and Flow in Au+Au Collisions
• Folding model analysis of proton radioactivity of spherical proton emitters
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• Off shell behaviour of the in medium nucleon-nucleon cross section
• Probing the equation of state with pions
• In-medium NN cross sections determined from stopping and collective flow in intermediate-energy heavy-ion collisions
• Directed and elliptic flow in heavy ion collisions from $E_{\mathrm{beam}}=90$ MeV/nucleon to $E_{c.m.}=200$ GeV/nucleon
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• The effect of "pre-formed" hadron potentials on the dynamics of heavy ion collisions and the HBT puzzle
• Centrality and Energy Dependence of Proton, Light Fragment and Hyperon Production
• Nuclear stopping and flow in heavy ion collisions and the in-medium NN cross section
• System-size dependence of Lambda and Xi production in nucleus--nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron
• A model comparison of resonance lifetime modifications, a soft equation of state and non-Gaussian effects on $\pi -\pi$ correlations at FAIR/AGS energies
• Centrality and system size dependence of (multi-strange) hyperons at 40$A$ and 158$A$ GeV: A comparison between a binary collision and a Boltzmann + hydrodynamic hybrid model
• Dynamics of Multifragmentation in Heavy Ion Collisions
• From Stopping to Viscosity in Nuclear Reactions
• Constituent quark model for nuclear stopping in high energy nuclear collisions

Cited by in corpus (6)

• Effects of in-medium nucleon-nucleon cross section on collective flow and nuclear stopping in heavy-ion collisions in the Fermi-energy domain
• Rapidity distribution of protons from the potential version of UrQMD model and the traditional coalescence afterburner
• The cumulants of the baryon number from central Au+Au collision at $E_{lab}$= 1.23 GeV$/$nucleon reveal the nuclear mean-field potentials
• Probing the boundary of phase transition of nuclear matter using proton flows in heavy-ion collisions at 2-8 GeV/nucleon
• Production and rescattering of strange baryons at SPS energies in a transport model with hadron potentials
• Beam energy dependence of cumulants of the net-baryon, net-charge and deuteron multiplicity distributions in Au+Au collisions at $\sqrt{s_{NN}}=3.0-5.0$ GeV