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<p>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 <i>T</i> = 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 <i>T</i><sub><i>c</i></sub> ≃ 150 MeV, our results are close to the AdS/CFT estimation computed at strong coupling.</p>

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Temperature dependence of heavy quark diffusion from (2+1)-flavor lattice QCD

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月23日

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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

摘要

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 Tc ≃ 150 MeV, our results are close to the AdS/CFT estimation computed at strong coupling.