Our Original Motivation

To use hard scattering products as probes to measure the properties of dense, highly excited QCD matter (what you would call final-state-effects)
We originally conceived of hard-scattering products as “calibrated sources” created within HI collisions (we have since learned better!)

To use hard scattering products as probes to measure the properties of dense, highly excited QCD matter (what you would call final-state-effects)