Abstract

The high energy densities deposited in the aftermath of heavy-ion collisions, promote a phase transition in QCD to a novel state of deconfined quarks and gluons, known as the quark gluon plasma. Due to the running of the strong coupling, the emergent properties of this medium are strongly scale dependent, with soft interactions revealing a strongly bound state of quasi-particles. A long sought after signature of deconfinement is high momentum transfer scatterings of a probe off of weakly bound quarks and gluons in the medium. This phenomena is known as Molière scatterings and can be accessed through measurements of jets which traverse and interact with the medium. In this talk a theoretical overview of Molière scattering and its implications for the properties of the quark gluon plasma will be presented, followed by the presentation of an experimental measurement using the substructure of jets to probe these high momentum scatterings of partons in the shower.

Speakers

Adam Takacs

Raymond Ehlers