Correlations between jet-quenching observables at energies available at the BNL Relativistic Heavy Ion Collider

Focusing on four types of correlation plots, RAA versus v2, RAA versus IAA, IAA versus v2IAA, and v2 versus v2IAA, we demonstrate how the centrality dependence of correlations between multiple jet quenching observables provide valuable insight into the energy loss mechanism in a quark-gluon plasma. In particular, we find that a qualitative energy loss model gives a good description of RAA versus v2 only when we take ΔE∼l3 and a medium geometry generated by a model of the color glass condensate. This same ΔE∼l3 model also qualitatively describes the trigger pT dependence of RAA versus IAA data and makes novel predictions for the centrality dependence for this RAA versus IAA correlation. Current data suggest, albeit with extremely large uncertainty, that v2IAA>>v2, a correlation that is difficult to reproduce in current energy loss models.