Ultraviolet avalanche in anisotropic non-Abelian plasmas

Details Ultraviolet avalanche in anisotropic non-Abelian plasmas Ultraviolet avalanche in anisotropic non-Abelian plasmas

2006-04-18

arxiv.org/abs/hep-ph/0604149v3

Phys.Rev.D75:025016,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 10 figures; v3: small textual changes; updated to correspond with version to appear in publication

Scientific paper

10.1103/PhysRevD.75.025016

We present solutions of coupled particle-field evolution in classical U(1) and SU(2) gauge theories in real time on three-dimensional lattices. For strongly anisotropic particle momentum distributions, we find qualitatively different behavior for the two theories when the field strength is high enough that non-Abelian self-interactions matter for SU(2). It appears that the energy drained by a Weibel-like plasma instability from the particles does not build up exponentially in transverse magnetic fields but instead returns, isotropically, to the hard scale via a rapid avalanche into the ultraviolet.

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