Heavy Quark Diffusion from <math display="inline"><mrow><mn>2</mn><mo>+</mo><mn>1</mn></mrow></math> Flavor Lattice QCD with 320 MeV Pion Mass

We present the first calculations of the heavy flavor diffusion coefficient using lattice QCD with light dynamical quarks corresponding to a pion mass of around 320 MeV. For temperatures

195 MeV < T < 352 MeV

, the heavy quark spatial diffusion coefficient is found to be significantly smaller than previous quenched lattice QCD and recent phenomenological estimates. The result implies very fast hydrodynamization of heavy quarks in the quark-gluon plasma created during ultrarelativistic heavy-ion collision experiments.

heavy quark: diffusion
flavor: 3
heavy ion: scattering
quark gluon: plasma
lattice field theory
lattice
quantum chromodynamics
quenching
temperature
quark

References(59)

Figures(14)

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See Supplemental Material at http://link.aps.org/supplemental/10.1103/PhysRevLett.130.231902 for the technical details of this study, which includes Refs. [7,12,13,15–42]

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