Collective flows in high-energy heavy-ion collisions at AGS and SPS energies

Pramana

M Isse¹  N Otuka⁴  A Ohnishi1¹  P K Sahu³  Y Nara² 

[1]Division of Physics, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan$$

[2]Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, Robert-Mayer-Str. 10, 60325 Frankfurt am Main, Germany$$

[3]Institute of Physics, Sachivalaya Marg, Bhubaneswar 751 005, India$$

[4]Nuclear Data Center, Department of Nuclear Energy System, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan$$

关键词: Collective flow;    heavy-ion collision;    equation of state.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Proton 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 nuclear mean-field (MF). Sideward 𝑝𝑥, directed 𝑣1, and elliptic 𝑣2 flows are systematically studied with different assumptions on the nuclear equation of state (EoS). We find that momentum dependence in the nuclear MF is important for understanding 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 an incident energy range of (2–158) A GeV.

【 授权许可】

Unknown