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arXiv · 2506.11958

Temperature Dependence of Heavy Quark Diffusion from (2+1)-flavor Lattice QCD

Dennis Bollweg·Jorge Luis Dasilva Golán·Olaf Kaczmarek·Rasmus Norman Larsen·Guy D. Moore·Swagato Mukherjee·Peter Petreczky·Hai-Tao Shu·Simon Stendebach·Johannes Heinrich Weber
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Abstract

We present a lattice determination of the heavy-quark diffusion coefficient in (2+1)-flavor QCD with almost physical quark masses. The momentum and spatial diffusion coefficients are extracted for a wide temperature range, from $T=163$ MeV to $10$ GeV. The results are in agreement with previous works from the HotQCD collaboration, and show fast thermalization of the heavy quark inside the QGP. Near the chiral crossover temperature $T_c\simeq150$ MeV, our results are close to the AdS/CFT estimation computed at strong coupling.

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Dennis Bollweg, Jorge Luis Dasilva Golán, Olaf Kaczmarek, Rasmus Norman Larsen, Guy D. Moore, Swagato Mukherjee, Peter Petreczky, Hai-Tao Shu, Simon Stendebach, Johannes Heinrich Weber. 2025-06-13. Temperature Dependence of Heavy Quark Diffusion from (2+1)-flavor Lattice QCD. https://doi.org/10.1007/jhep09(2025)180

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