Heavy Flavor in the sQGP

Details Heavy Flavor in the sQGP Heavy Flavor in the sQGP

2008-06-20

arxiv.org/abs/0806.3341v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 12 eps-figs, Proc. of 24. Winter Workshop on Nuclear Dynamics, South Padre Island (TX, USA), April 05-12, 2008

Scientific paper

We attempt a unified treatment of heavy quarkonia and heavy-quark diffusion in the Quark-Gluon Plasma. Our approach is based on finite-temperature T-matrices with interaction potentials estimated from the heavy-quark internal energy computed in thermal lattice QCD (lQCD). In the charmonium sector S-wave bound states (J/\psi, \eta_c) survive up to temperatures of ~2 T_c, not inconsistent with constraints from euclidean correlation functions in lQCD. In the open-heavy flavor sector, the T-matrix interaction reduces heavy-quark diffusion substantially, leading to fair agreement with single-electron spectra at RHIC and suggestive for a small viscosity-to-entropy ratio close to T_c.

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