Staff Members - Benha University
Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies
European Physical Journal A • 2016
Publication Information
Authors
Abdel Nasser Tawfik,Loutfy I. Abou-Salem,Asmaa G. Shalaby and Mahmoud Hanafy,Alexander Sorin,Oleg Rogachevsky,Werner Scheinast
Keywords
Thermal models of nuclear reactions, production of quark-gluon plasma, hadron-induced high-
energy reactions
Journal
European Physical Journal A
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Not Available
Supplementary Materials
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Abstract
The energy dependence of various particle ratios is calculated within the Ultra-Relativistic Quan-
tum Molecular Dynamics approach and compared with the hadron resonance gas (HRG) model
and measurements from various experiments, including RHIC-BES, SPS and AGS. It is found that
the UrQMD particle ratios agree well with the experimental results at the RHIC-BES energies.
Thus, we have utilized UrQMD in simulating particle ratios at other beam energies down to 3 GeV,
which will be accessed at NICA and FAIR future facilities. We observe that the particle ratios
for crossover and first-order phase transition, implemented in the hybrid UrQMD v3.4, are nearly
indistinguishable, especially at low energies (at large baryon chemical potentials or high density).
tum Molecular Dynamics approach and compared with the hadron resonance gas (HRG) model
and measurements from various experiments, including RHIC-BES, SPS and AGS. It is found that
the UrQMD particle ratios agree well with the experimental results at the RHIC-BES energies.
Thus, we have utilized UrQMD in simulating particle ratios at other beam energies down to 3 GeV,
which will be accessed at NICA and FAIR future facilities. We observe that the particle ratios
for crossover and first-order phase transition, implemented in the hybrid UrQMD v3.4, are nearly
indistinguishable, especially at low energies (at large baryon chemical potentials or high density).