Numerical Simulation of Non-Abelian Particle-Field Dynamics

Details Numerical Simulation of Non-Abelian Particle-Field Dynamics Numerical Simulation of Non-Abelian Particle-Field Dynamics

2005-11-20

arxiv.org/abs/hep-ph/0511242v1

Eur.Phys.J. A29 (2006) 65-69

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 5 figures; to appear in the proceedings of the "Workshop on Quark-Gluon-Plasma Thermalization", August 10 -- 12, 2005

Scientific paper

10.1140/epja/i2005-10300-3

Numerical 1D-3V solutions of the Wong-Yang-Mills equations with anisotropic particle momentum distributions are presented. They confirm the existence of plasma instabilities for weak initial fields and their saturation at a level where the particle motion is affected, similar to Abelian plasmas. The isotropization of the particle momenta by strong random fields is shown explicitly, as well as their nearly exponential distribution up to a typical hard scale, which arises from scattering off field fluctuations. By variation of the lattice spacing we show that the effects described here are independent of the UV field modes near the end of the Brioullin zone.

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