All orders transport theory from the multiple scattering expansion of the self-energy: the central cuts

Details All orders transport theory from the multiple scattering expansion of the self-energy: the central cuts All orders transport theory from the multiple scattering expansion of the self-energy: the central cuts

2005-10-27

arxiv.org/abs/hep-ph/0510367v2

Acta Phys.Hung. A27 (2006) 339-342

Physics

High Energy Physics

High Energy Physics - Phenomenology

Poster proceedings for Quark Matter 2005 conference. To appear in Acta Physica Hungarica A, Heavy Ion Physics. 4 pages, 1 figu

Scientific paper

10.1556/APH.27.2006.2-3.35

We use the full multiple scattering expansion of the retarded self-energy to obtain the gain and loss rates present in the Kadanoff-Baym relativistic transport equation. The rates we obtain include processes with any number of particles. As a first approximation, we only consider central cuts in the self-energies, but otherwise our results are general. We specialize to the case of scalar field theory to compare with lowest order results. The main application of this work is relativistic transport theory of very dense systems, such as the quark-gluon plasma or the early universe, where multi-particle interactions are important.

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