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arXiv · 2311.01525

Quark Mass Dependence of Heavy Quark Diffusion Coefficient from Lattice QCD

Luis Altenkort·David de la Cruz·Olaf Kaczmarek·Rasmus Larsen·Guy D. Moore·Swagato Mukherjee·Peter Petreczky·Hai-Tao Shu·Simon Stendebach
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Abstract

We present the first study of the quark mass dependence of the heavy quark momentum and spatial diffusion coefficients using lattice QCD with light dynamical quarks corresponding to a pion mass of 320 MeV. We find that, for the temperature range 195 MeV $<T<$ 293 MeV, the spatial diffusion coefficients of the charm and bottom quarks are smaller than those obtained in phenomenological models that describe the $p_T$ spectra and elliptic flow of open heavy flavor hadrons.

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Luis Altenkort, David de la Cruz, Olaf Kaczmarek, Rasmus Larsen, Guy D. Moore, Swagato Mukherjee, Peter Petreczky, Hai-Tao Shu, Simon Stendebach. 2023-11-02. Quark Mass Dependence of Heavy Quark Diffusion Coefficient from Lattice QCD. https://doi.org/10.1103/physrevlett.132.051902

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