Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma

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dc.creatorvan Hees, H.
dc.creatorMannarelli, M.
dc.creatorGreco, V.
dc.creatorRapp, R.
dc.date2007-09-18
dc.date2008-05-04
dc.date.accessioned2026-07-07T11:37:17Z
dc.date.available2026-07-07T11:37:17Z
dc.descriptionWe evaluate heavy-quark (HQ) transport properties in a Quark-Gluon Plasma (QGP) employing interaction potentials extracted from thermal lattice QCD. Within a Brueckner many-body scheme we calculate in-medium T-matrices for charm- and bottom-quark scattering off light quarks in the QGP. The interactions are dominated by attractive meson and diquark channels which support bound and resonance states up to temperatures of ~1.5 T_c. We apply pertinent drag and diffusion coefficients (supplemented by perturbative scattering off gluons) in Langevin simulations in an expanding fireball to compute HQ spectra and elliptic flow in \sqrt{s_{NN}}=200 GeV Au-Au collisions. We find good agreement with semileptonic electron-decay spectra which supports our nonperturbative computation of the HQ diffusion coefficient, suggestive for a strongly coupled QGP.
dc.description4 pages, 4 figures, v2: version to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0709.2884
dc.identifierhttp://arxiv.org/abs/0709.2884
dc.identifierPhys.Rev.Lett.100:192301,2008
dc.identifierdoi:10.1103/PhysRevLett.100.192301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199157
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleNonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
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