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arXiv · hep-ph/0610254

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

D. Cabrera·R. Rapp
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Abstract

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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D. Cabrera, R. Rapp. 2006-10-19. Q\bar{Q} modes in the Quark-Gluon Plasma. https://doi.org/10.1140/epja%2Fi2006-10237-y

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