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arXiv · hep-ph/0109043

Partonic Scattering Cross Sections in the QCD Medium

Joerg Ruppert·Gouranga C. Nayak·Dennis D. Dietrich·Horst Stoecker·Walter Greiner
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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 sreening 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.

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Joerg Ruppert, Gouranga C. Nayak, Dennis D. Dietrich, Horst Stoecker, Walter Greiner. 2001-11-26. Partonic Scattering Cross Sections in the QCD Medium. https://doi.org/10.1016/s0370-2693(01)01190-x

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