  PHENIX has measured the transverse momentum ($p_{\rm T}$) spectra and two
particle angular correlations for high $p_{\rm T}$ particles in $d$+Au
collisions at $\sqrt{s_{_{NN}}}$=200\,GeV using the RHIC Year-2008 run data.
The azimuthal angle correlations for two particles with a large rapidity gap
exhibit a ridge like structure. Using the $\pi^0$ reconstructed in the EMCal,
we have successfully extended the $p_{\rm T}$ reach of the correlation up to
8\,GeV/$c$. We find that the azimuthal anisotropy of hadrons found at low
$p_{\rm T}$ persists up to 6\,GeV/$c$ with a significant centrality and $p_{\rm
T}$ dependence, similar to what was observed in A+A collisions.

Nuclear Experiment