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
公開日: 2025/6/13
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.