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 RuppertGND, Gouranga C. Nayak, Dennis Dean Dietrich, Horst StöckerORCiDGND, Walter GreinerGND |
---|---|
URN: | urn:nbn:de:hebis:30-21447 |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2005/11/17 |
Year of first Publication: | 2001 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2005/11/17 |
Tag: | (QGP); QCD medium; quark-gluon plasma |
Source: | Phys.Lett.B520:233-242,2001. [hep-ph/0109043] |
HeBIS-PPN: | 185531903 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | Deutsches Urheberrecht |