Q\bar{Q} modes in the Quark-Gluon Plasma

Details Q\bar{Q} modes in the Quark-Gluon Plasma Q\bar{Q} modes in the Quark-Gluon Plasma

2006-10-19

arxiv.org/abs/hep-ph/0610254v1

Eur.Phys.J.A31:858-861,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 6 figures, to appear in the proceedings of the IV International Conference on Quarks and Nuclear Physics (QNP06), Mad

Scientific paper

10.1140/epja/i2006-10237-y

We study the evolution of heavy quarkonium states with temperature in a Quark-Gluon Plasma by evaluating an in-medium Q\bar{Q} T-matrix within a reduced Bethe-Salpeter equation in S- and P-wave channels. The interaction kernel is extracted from finite-temperature QCD lattice calculations of the singlet free energy of a Q\bar{Q} pair. Quarkonium bound states are found to gradually move across the Q\bar{Q} threshold after which they rapidly dissolve in the hot system. We calculate Euclidean-time correlation functions and compare to results from lattice QCD. We also study finite-width effects in the heavy-quark propagators.

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