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arXiv · 2312.12280

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

Harshit Pandey·Soeren Schlichting·Sayantan Sharma
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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.

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Harshit Pandey, Soeren Schlichting, Sayantan Sharma. 2023-12-19. Heavy Quark Momentum Broadening in a Non-Abelian Plasma away from Thermal Equilibrium. https://doi.org/10.1103/physrevlett.132.222301

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