Nonuniversality Aspects of Nonlineark⊥Factorization for Hard Dijets

The origin of breaking of conventional linear $k_{\perp }$ factorization for hard processes in a nuclear environment is by now well established. The realization of the nonlinear nuclear $k_{\perp }$ factorization which emerges instead was found to change from one jet observable to another. Here we demonstrate how the pattern of nonlinear $k_{\perp }$ factorization, and especially the role of diffractive interactions, in the production of dijets off nuclei depends on the color properties of the underlying pQCD subprocess.