Real and imaginary-time quarkonium correlators in a hot plasma

Abstract

The possibility of describing the behavior of a $Q\overline{Q}$ pair in a hot plasma in terms of an effective potential is investigated. It is shown that as long as medium effects can be embodied in a gaussian action, like in the QED case, the $Q\overline{Q}$ propagator obeys a closed temporal evolution equation whose large-time behavior is governed by an effective potential. The latter, beside screening, displays also an imaginary part related to collisions.

Talk given at the 8-th Conference "Quark Confinement and the Hadron Spectrum", Mainz, Germany, 1-6 September 2008

References in corpus (2)

• Real and imaginary-time $Q\bar{Q}$ correlators in a thermal medium
• The Polyakov Loop and its Relation to Static Quark Potentials and Free Energies