Mean-field effects on collective flow in high-energy heavy-ion collisions at 2-158A GeV energies

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.064908· OSTI ID:20771137

Isse, M; Ohnishi, A; Otuka, N; Sahu, P K; Nara, Y ^[1]

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1. Division of Physics, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan)

Collective flows in heavy-ion collisions from AGS [(2-11)A GeV] to SPS [(40,158)A GeV] energies are investigated in a nonequilibrium transport model with the nuclear mean field (MF). Sideward <p{sub x}>, directed v{sub 1}, and elliptic flows v{sub 2} are systematically studied with different assumptions for the nuclear equation of state (EOS). We find that the momentum dependence on the nuclear MF is important for the understanding of the proton collective flows at AGS and SPS energies. Calculated results with momentum-dependent MF qualitatively reproduce the experimental data of proton sideward, directed, and elliptic flows in a incident energy range of (2-158)A GeV.

• OSTI ID: 20771137
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevC.72.064908; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EQUATIONS OF STATE
GEV RANGE
HEAVY ION REACTIONS
MEAN-FIELD THEORY
PROTONS
TRANSPORT THEORY