Quarkonia and Heavy-Quark Relaxation Times in the Quark-Gluon Plasma

Understand

A thermodynamic T-matrix approach for elastic 2-body interactions is employed to calculate spectral functions of open and hidden heavy-quark systems in the Quark-Gluon Plasma.

• This enables the evaluation of quarkonium bound-state properties and heavy-quark diffusion on a common basis and thus to obtain mutual constraints.
• The two-body interaction kernel is approximated within a potential picture for spacelike momentum transfers.
• An effective field-theoretical model combining color-Coulomb and confining terms is implemented with relativistic corrections and for different color channels.