Paper
Suppression of Forward Pion Correlations in d+Au Interactions at STAR
Authors
Ermes Braidot
Abstract
During the 2008 run RHIC provided high luminosity in both p+p and d+Au collisions at . Electromagnetic calorimeter acceptance in STAR was enhanced by the new Forward Meson Spectrometer (FMS), and is now almost contiguous from over the full azimuth. This large acceptance provides sensitivity to the gluon density in the nucleus down to . Measurements of the azimuthal correlation between a forward and an associated particle at large rapidity are sensitive to the low- gluon density. Data exhibit the qualitative features expected from gluon saturation. A comparison to calculations using the Color Glass Condensate (CGC) model is presented.