Speaker
Description
In a revolutionary paper, Matsui and Satz proposed using the suppression of quarkonia as a smoking gun signature of deconfinement in relativistic heavy ion collisions. The stunning success of using strong-coupling, AdS/CFT techniques to predict the viscosity to entropy density ratio extracted from RHIC and LHC heavy ion collision data using sophisticated 3+1D relativistic viscous hydrodynamics has prompted further investigation into the physics of a strongly-coupled plasma. We compute, for the first time, the suppression of bottomonia in a strongly coupled QGP, and compare the results to those from a weakly coupled QGP and to data. The complex binding energies which inform the thermal width and hence the $R_{AA}$ of $\Upsilon$(1S) are determined using imaginary time techniques. Further, we discuss the validity of this methodology which solves for strongly coupled binding energies using static $q\bar{q}$ potential models from AdS/CFT by comparing to independent results.
