Speaker
Description
Heavy quarkonium serves as an excellent probe to study the properties of the Quark-Gluon Plasma (QGP). The physics of quarkonium created in heavy-ion collisions is intrinsically connected to the correlation functions of adjoint chromoelectric fields in quantum chromodynamics. Such correlation functions are vital in determining transport coefficients that govern the evolution of heavy quarkonium inside the QGP.
I will identify three distinct gauge-invariant correlators and present their next-to-leading order (NLO) perturbative calculation in a weak-coupling expansion in a thermal medium. Interestingly, two of the resulting correlators turn out to be asymmetric and the results are shown to be in excellent agreement with recent lattice calculations at high temperatures. Finally, I will also outline how these correlators can be used to extract transport coefficients.
