  In these proceedings, we review the production of both light and heavy flavor
dijets in heavy ion collisions and highlight a promising observable to expose
their distinct signatures. We propose the modification of dijet invariant mass
distributions in heavy ion collisions as a novel observable that exhibits
striking sensitivity to the quark-gluon plasma transport properties and heavy
quark mass effects on in-medium parton showers. This observable has the
advantage of amplifying the effects of jet quenching in contrast to
conventional observables, such as the dijet momentum imbalance shift, which
involve cancellations of such effects and, hence, result in less pronounced
signals. Predictions are presented for Au+Au collisions at $\sqrt{s_{NN}}$ =
200 GeV to guide the future sPHENIX program at the Relativistic Heavy Ion
Collider.
