期刊
EUROPEAN PHYSICAL JOURNAL A
卷 31, 期 4, 页码 858-861出版社
SPRINGER
DOI: 10.1140/epja/i2006-10237-y
关键词
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We study the evolution of heavy quarkonium states with temperature in a Quark-Gluon Plasma (QGP) by evaluating an in-medium Q (Q) over bar 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 (Q) over bar pair. Quarkonium bound states are found to gradually move across the Q (Q) over bar 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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