Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-01-19
Nucl.Phys. A687 (2001) 457-474
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 Pages latex (single spaced), 7 postscript figures, Version to be published
Scientific paper
10.1016/S0375-9474(00)00577-7
We study the production and equilibration of the gluon-minijet plasma expected to be formed in the central region of ultrarelativistic heavy-ion collisions at the BNL-RHIC and the CERN-LHC by solving a self-consistent relativistic transport equation. We compute the minijet production within perturbative QCD. Subsequent collisions among the semi-hard partons are treated by considering the elastic gg -> gg processes with screening of the long wavelength modes taken into account. We determine the time $\tau_{eq}$ where close to ideal hydrodynamic flow sets in, and find rather similar numbers for central heavy-ion collisions at BNL-RHIC and CERN-LHC energies. The number densities, energy densities and temperatures of the minijet plasma are found to be different at RHIC and LHC, e.g. $T(\tau_{eq})\sim220$ MeV and 380 MeV, respectively.
Dumitru Adrian
Greiner Walter
McLerran Larry
Nayak Gouranga C.
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