Forward Physics at Star Status of Analysis on Forward and mid Rapidity Correlation Measurements in P+p and D+au

Measurements of the production of high energy π mesons at large pseudorapidity, coincident with charged hadrons at mid-rapidity, for proton+proton and deuteron+gold collisions at √ sNN = 200 GeV are reported. The p+p cross section for inclusive π production follows expectations from next-to-leading order perturbative QCD. Both the inclusive cross section and the di-hadron azimuthal correlations are consistent with a model where parton showers supplement leading-order pQCD. A suppression of the back-to-back azimuthal correlations was observed in d+Au, qualitatively consistent with the gluon saturation picture.