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

AbstractWe perform a quantitative analysis of the nuclear modification factor in deuteron–gold collisions RdAu 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 RdAu at all pT due to low-x evolution. We demonstrate that our results are consistent with the data for dAu charged hadron spectra, RdAu and RCP recently reported for rapidities in the interval η=0–3.2 by the BRAHMS experiment at RHIC. We also make a prediction for RpA at mid-rapidity in pA collisions at the LHC