Nonperturbative Heavy-Quark Interactions in the QGP

Details Nonperturbative Heavy-Quark Interactions in the QGP Nonperturbative Heavy-Quark Interactions in the QGP

2009-07-24

arxiv.org/abs/0907.4319v2

Nucl.Phys.A830:861c-864c,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages + 6 eps figures, proceedings contribution to Quark Matter 2009, Knoxville (TN), Mar 30 - Apr 04; v2: 3 figs. updated f

Scientific paper

10.1016/j.nuclphysa.2009.10.078

We adopt a $T$-matrix approach to study quarkonium properties and heavy-quark transport in a Quark-Gluon Plasma. The $T$-matrix approach is well suited to implement potential scattering and thus provides a common framework for low-momentum transfer interactions in heavy-heavy and heavy-light quark systems. We assume that the underlying potentials can be estimated from the heavy-quark free energy computed in lattice QCD. We discuss constraints from vacuum spectroscopy, uncertainties arising from different choices of the potential, and the role of elastic and inelastic widths which are naturally accounted for in the $T$-matrix formalism.

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