Author/Authors :
J?rg Ruppert، نويسنده , , Gouranga C. Nayak، نويسنده , , Dennis D. Dietrich and Dirk H. Rischke، نويسنده , , Walter Greiner and Ludwig Neise and Horst Stocker، نويسنده , , Walter Greiner، نويسنده ,
Abstract :
A medium modified gluon propagator is used to evaluate the scattering cross section for the process gg→gg in the QCD medium by performing an explicit sum over the polarizations of the gluons. We incorporate a magnetic screening mass from a non-perturbative study. It is shown that the medium modified cross section is finite, divergence free, and is independent of any ad-hoc momentum transfer cut-off parameters. The medium modified finite cross sections are necessary for a realistic investigation of the production and equilibration of the minijet plasma expected at RHIC and LHC.
