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arXiv · 0710.1223

Jet broadening in unstable non-Abelian plasmas

Adrian Dumitru·Yasushi Nara·Bjoern Schenke·Michael Strickland
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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.

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Adrian Dumitru, Yasushi Nara, Bjoern Schenke, Michael Strickland. 2008-10-23. Jet broadening in unstable non-Abelian plasmas. https://doi.org/10.1103/physrevc.78.024909

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