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Physical Review D

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Non-Abelian plasma instabilities for extreme anisotropy

Department of Physics, University of Virginia, P.O. Box 400714, Charlottesville, Virginia 22904-4714, USA

Department of Physics, McGill University, 3600 rue University, Montréal, Québec H3A 2T8, Canada

Phys. Rev. D 76, 045009 – Published 17 August, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.045009

Abstract

Thermalization of quark-gluon plasmas in heavy-ion collisions is a difficult theoretical problem. One theoretical goal has been to understand the physics of thermalization in the relatively simplifying limit of arbitrarily high energy collisions, where the running coupling $α_{s}$ is weak. One of the current roadblocks to achieving this goal is lack of knowledge about the behavior of plasma instabilities when particle distributions are highly anisotropic. In particular, it has not been known how the magnetic fields generated by plasma instabilities scale with anisotropy. In this paper, we use numerical simulations in a first attempt to determine this scaling.

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