Q\bar{Q} modes in the Quark-Gluon Plasma
摘要
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.
引用
@article{arxiv.hep-ph/0610254,
title = {Q\bar{Q} modes in the Quark-Gluon Plasma},
author = {D. Cabrera and R. Rapp},
journal= {arXiv preprint arXiv:hep-ph/0610254},
year = {2008}
}
备注
3 pages, 6 figures, to appear in the proceedings of the IV International Conference on Quarks and Nuclear Physics (QNP06), Madrid, Spain, June 5-10, 2006