Transport Theory beyond Binary Collisions

Details Transport Theory beyond Binary Collisions Transport Theory beyond Binary Collisions

2004-06-08

arxiv.org/abs/hep-ph/0406097v3

Phys.Rev. D71 (2005) 065007

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 21 figures, minor changes, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.71.065007

Using the Schwinger-Keldysh technique, we derive the transport equations for a system of quantum scalar fields. We first discuss the general structure of the equations and then their collision terms. Taking into account up to three-loop diagrams in \phi^3 model and up to four-loop diagrams in \phi^4 model, we obtain the transport equations which include the contributions of multi-particle collisions and particle production processes, in addition to mean-field effects and binary interactions.

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