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Author Ivanov, Yu. B. ♦ Russkikh, V. N.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ HEAVY ION REACTIONS ♦ NUCLEAR MODELS ♦ DISTRIBUTION FUNCTIONS ♦ MEAN-FIELD THEORY ♦ INELASTIC SCATTERING ♦ CROSS SECTIONS ♦ BARYONS
Abstract An extension of the multifluid approach to the description of heavy-ion collisions is proposed. A three-fluid model involving mean {sigma} and {omega} fields is formulated for heavy-ion collisions at incident energies around 1 GeV per nucleon. It is a natural extension of a similar two-fluid model developed in our recent papers and is intended to obtain a closer approximation to the complete relativistic mean-field kinetic theory. The collisional coupling between the fluids is formulated in terms of hadron-hadron cross sections (which take into account Pauli blocking). The model contains no fitting parameters. The relativistic mean-field three-fluid model (RMF-3FM) is tested for the case of thermalization in counter-streaming nuclear fluids. Comparison with the results obtained in relativistic Landau-Vlasov kinetics and in a similar two-fluid model (RMF-2FM) shows that the RMF-3FM reproduces the gross properties of the equilibration better than the RW-2FM. 30 refs., 6 figs.
ISSN 10637788
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-12-01
Publisher Place United States
Journal Physics of Atomic Nuclei
Volume Number 58
Issue Number 12


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