Nuclear modification factor in d + Au collisions: Onset of suppression in the color glass condensate

We perform a quantitative analysis of the nuclear modification factor in deuteron-gold collisions R ^dAu within the Color Glass Condensate approach, and compare our results with the recent data from RHIC experiments. Our model leads to Cronin enhancement at mid-rapidity, while at forward rapidities it predicts strong suppression of R ^dAu at all _PT due to low-x evolution. We demonstrate that our results are consistent with the data for dAu charged hadron spectra, R ^dAu and R ^CP recently reported for rapidities in the interval η=0-3.2 by the BRAHMS experiment at RHIC. We also make a prediction for R ^pA at mid-rapidity in pA collisions at the LHC.