Ian Moult of Yale University continues his two part treatment of energy correlators, a class of observables that measure how energy flows between detectors in high energy collisions. Delivered as part of the Institute for Advanced Study's Prospects in Theoretical Physics 2026 program, this second session builds on introductory material to go further into how these correlators probe the structure of jets and the underlying quantum field theory governing parton splitting. Moult, a theorist working at the intersection of collider physics and formal QCD, works through the technical machinery connecting energy correlator measurements to operator product expansions and short distance physics. The talk is aimed at researchers and advanced graduate students already familiar with quantum field theory, and assumes the groundwork laid in part one. It runs about seventy five minutes and is presented chalk talk style typical of IAS summer school lectures.