Partonic scattering cross sections in the QCD medium
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 ex- plicit 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 PACS: 12.38.Mh; 14.70.Dj; 12.38.Bx; 11.10.Wx
| Author: | Jörg Ruppert, Gouranga C. Nayak, Dennis Dean Dietrich, Horst Stöcker, Walter Greiner |
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| URN: | urn:nbn:de:hebis:30-21447 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 17.11.2005 |
| Year of first Publication: | 2001 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Tag: | (QGP); QCD medium ; quark-gluon plasma |
| Source: | Phys.Lett.B520:233-242,2001. [hep-ph/0109043] |
| HeBIS PPN: | 185531903 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
