| Abstract: | Early results from the Solenoidal Tracker At RHIC (STAR) using prototype forward calorimeters (FPD/FPD++) have shown that in d+Au collisions at $
sqrt {s_{NN} }
$
sqrt {s_{NN} }
= 200 GeV a stronger suppression of forward π 0 yield is observed than would be expected from shadowing effects. Exploratory measurements and observations can be qualitatively interpreted using the Color Glass Condensate (CGC) model to describe the colliding nucleus. A new detector, the Forward Meson Spectrometer (FMS), has been built to measure forward pion and photon production to quantify gluon suppression at low x in heavy nuclei over a large range in x and p T . |
