Speaker
Nadia Barnard
(University of Cape Town)
Description
In a novel investigation into the physics of a strongly coupled quark gluon plasma, we compute for the first time the suppression of $\Upsilon$(1S) in a strongly coupled QGP and compare the results to those from a weakly coupled QGP. The complex binding energies which inform the thermal width and hence the $R_{AA}$ of the bottomonia in $\sqrt{s}_{NN}=2.76$ TeV Pb+Pb collisions are determined using imaginary time techniques. Further, we probe the validity of using complex heavy quark potentials from AdS/CFT for all quark separation $r$ in the calculation of the aforementioned binding energies by independently computing the meson spectrum in vacuum using semiclassical, rotating open strings attached to the D7-brane.
Author
Nadia Barnard
(University of Cape Town)
Co-author
William Horowitz
(University of Cape Town)