Decomposition of awayside components of dijet correlation in Au+Au collisions at $\sqrt{S_{NN}}=200$ GeV at PHENIX

At intermediate transverse momentum, dijet angular correlations show a local minimum at $\Delta\phi$, peaking one radian away from $\pi$. This structure indicates that the awayside jet is modified by the medium created in heavy ion collisions. We present the measurement of inclusive photon-hadron $\Delta\eta$ - $\Delta\phi$ correlations from $\sqrt{s_{NN}}=200$ GeV Au+Au collisions in PHENIX. In central collisions, an enhancement in per trigger associated hadrons in the near-side (trigger) jet is observed for $0.5<\Delta\eta<0.7$. The awayside components, as a function of $\Delta\eta$, are decomposed using $\delta\phi$ into a head region, corresponding to the ``punch through'' jet, and a shoulder region containing the medium response. The awayside components are found to be independent of $\Delta\eta$. $p_T$ weighted yields allow investigation of how the transverse momentum is distributed between near- and away-side associated particles.