Charmonia at finite momenta in a deconfined plasma
Saumen Datta, Frithjof Karsch, Peter Petreczky, Soenke Wissel, Ines, Wetzorke
TL;DR
This paper investigates how charmonium states behave at finite momenta in a deconfined plasma, revealing medium modifications and changes in dispersion relations, which enhances understanding of quark-gluon plasma properties.
Contribution
It provides a detailed analysis of the behavior of moving charmonia in a deconfined medium, highlighting medium modifications and dispersion relation changes.
Findings
Charmonia survive up to ~2 Tc in a deconfined plasma.
Finite momentum charmonia exhibit medium modifications.
Energy-momentum dispersion relations are altered in the medium.
Abstract
Lattice studies of charmonium systems have indicated that in a deconfined gluonic plasma ground state charmonia survive as bound states upto temperatures \~ 2 Tc. After surveying the methodologies used in reaching these results, we examine the behavior of these systems when the bound state is in motion with respect to the heatbath frame. We find that the finite momenta charmonia show medium modifications when the medium is deconfined; in particular, a modification of the energy-momentum dispersion relation is indicated.
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