Recent Results of Double Helicity Asymmetries from PHENIX.

Scott Wolin
The search for the gluon contribution to the proton spin, $\Delta G$, is critical to understanding the proton spin puzzle. The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) is able to directly probe gluon polarization using collisions between two polarized proton beams. $\Delta G$ is determined from the double longitudinal asymmetry, $A_{LL}$, for a final state to be observed between same and opposite sign helicity proton interactions. In this talk we will summarize...