出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We report on a study of charmonium at high temperature in 2-avour QCD. This is the rst such
study with dynamical fermions. Using an improved anisotropic lattice action, spectral functions
are extracted from correlators in the vector and pseudoscalar channels. No signs of mediuminduced
suppression of the ground states are seen for temperatures up to 1:5Tc, while at T 2Tc
there are clear signs of modications. The current systematic and statistical uncertainties in our
data, in particular the relatively coarse lattice and small volume, do not allow us to draw a rm
conclusion at this stage.
