Searching the Color Glass Condensate Through $p_T$ Suppression

M. A. Betemps, M. B. Gay Ducati

Published 2005-10-03Version 1

In this work the rapidity and transverse momentum dependence of the nuclear modification ratio is evaluated for the dilepton production at RHIC and LHC, using the Color Glass Condensate (CGC) framework. The ratio is compared for two distinct dilepton mass values, concerning the transverse momentum distribution, and a suppression of the Cronin peak is verified even for large mass. The nuclear modification ratio suppression in the dilepton rapidity spectra, as obtained for hadrons at RHIC, is verified for LHC energies at large transverse momentum, although not present at RHIC energies. These results consolidate the dilepton as a most suitable observable for QCD high density approaches.