Real and imaginary-time quarkonium correlators in a hot plasma

Details Real and imaginary-time quarkonium correlators in a hot plasma Real and imaginary-time quarkonium correlators in a hot plasma

2008-12-05

arxiv.org/abs/0812.1130v1

PoS Confinement8:117,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

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.

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