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000279700 1001_ $$0P:(DE-HGF)0$$aFrancis, A.$$b0
000279700 245__ $$aNonperturbative estimate of the heavy quark momentum diffusion coefficient
000279700 260__ $$a[S.l.]$$bSoc.$$c2015
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000279700 520__ $$aWe estimate the momentum diffusion coefficient of a heavy quark within a pure SU(3) plasma at a temperature of about 1.5Tc. Large-scale Monte Carlo simulations on a series of lattices extending up to 1923×48 permit us to carry out a continuum extrapolation of the so-called color-electric imaginary-time correlator. The extrapolated correlator is analyzed with the help of theoretically motivated models for the corresponding spectral function. Evidence for a nonzero transport coefficient is found and, incorporating systematic uncertainties reflecting model assumptions, we obtain κ=(1.8–3.4)T3. This implies that the “drag coefficient,” characterizing the time scale at which heavy quarks adjust to hydrodynamic flow, is η−1D=(1.8–3.4)(Tc/T)2(M/1.5  GeV)  fm/c, where M is the heavy quark kinetic mass. The results apply to bottom and, with somewhat larger systematic uncertainties, to charm quarks.
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000279700 536__ $$0G:(DE-Juel1)jara0108_20141101$$aMassive current--current correlators in thermal QCD (jara0108_20141101)$$cjara0108_20141101$$fMassive current--current correlators in thermal QCD$$x1
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000279700 7001_ $$0P:(DE-HGF)0$$aKaczmarek, O.$$b1
000279700 7001_ $$0P:(DE-HGF)0$$aLaine, M.$$b2
000279700 7001_ $$0P:(DE-Juel1)132210$$aNeuhaus, T.$$b3$$eCorresponding author
000279700 7001_ $$0P:(DE-HGF)0$$aOhno, H.$$b4
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