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Forward Physics at STAR: Status of analysis on forward and mid rapidity correlation measurements in p+p and d+Au

A. Ogawa
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Abstract

Measurements of the production of high energy pi0 mesons at large pseudorapidity, coincident with charged hadrons at mid-rapidity, for proton+proton and deuteron+gold collisions at sqrt(s)_NN=200 GeV are reported. The p+p cross section for inclusive pi0 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.

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A. Ogawa. 2004-08-05. Forward Physics at STAR: Status of analysis on forward and mid rapidity correlation measurements in p+p and d+Au. https://arxiv.org/abs/nucl-ex/0408004

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