Heavy Quark Momentum Broadening in a Non-Abelian Plasma away from Thermal Equilibrium

Abstract

We perform classical-statistical real-time lattice simulations to compute real-time spectral functions and momentum broadening of quarks in the presence of strongly populated non-Abelian gauge fields. Based on a novel methodology to extract the momentum broadening for relativistic quarks, we find that the momentum distribution of quarks exhibit interesting non-perturbative features as a function of time due to correlated momentum kicks it receives from the medium, eventually going over to a diffusive regime. We extract the momentum diffusion coefficient for a mass range describing charm and bottom quarks and find sizeable discrepancies from the heavy quark limit.

v2: published version

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• Adiabatic Hydrodynamization and the Emergence of Attractors: a Unified Description of Hydrodynamization in Kinetic Theory
• Nonperturbative heavy quark diffusion coefficients in a weakly magnetized thermal QCD medium
• Subdiffusion of heavy quark in hot QCD matter by the fractional Langevin equation
• Finite Temperature Quarkonia Spectral Functions in the Pseudoscalar Channel
• Anisotropy effects on heavy quark dynamics in Gribov modified gluon plasma