Abstract

We present recent results from the PHENIX experiment on measurements of di-hadron correlations at forward rapidities in d+Au collisions. These measurements probe the small-x region of the parton momenta in the Au nucleus. The di-hadron yield is observed to show large nuclear suppression, as compared to expectations from p+p measurements. The results indicate significant modification of the nuclear parton distributions at small-x, from shadowing or gluon saturation, for example.

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