Jet broadening in unstable non-Abelian plasmas
Abstract
We perform numerical simulations of the QCD Boltzmann-Vlasov equation including both hard elastic particle collisions and soft interactions mediated by classical Yang-Mills fields. We provide an estimate of the coupling of jets to a hot plasma which is independent of infrared cutoffs. For weakly-coupled anisotropic plasmas the local rotational symmetry in momentum space is broken. The fields develop unstable modes, forming configurations where B_t>E_t and E_z>B_z. This provides a possible explanation for the experimental observation that high-energy jets traversing the plasma perpendicular to the beam axis experience much stronger broadening in rapidity than in azimuth.
Keywords
Cite
@article{arxiv.0710.1223,
title = {Jet broadening in unstable non-Abelian plasmas},
author = {Adrian Dumitru and Yasushi Nara and Bjoern Schenke and Michael Strickland},
journal= {arXiv preprint arXiv:0710.1223},
year = {2008}
}
Comments
6 pages, 7 figures, version accepted for publication in Phys.Rev.C, typos fixed, more detailed discussion of q-hat