Perturbative Color Correlations in Double Parton Scattering

We study the possible contribution of color correlations to the observable final states in Double Parton Scattering (DPS). We show that there is a specific class of Feynman diagrams related to so called 1 \textrightarrow{} 2 processes when the contribution of these color correlations is not Sudakov suppressed with the transverse scales. We explain that while the contribution of color correlations in GPD may be significant, there is an additional source of smallness in the cross sections since the created particles and complex conjugated ones in both hard processes must be close to each other in space-time. Consequently, the color correlations contribute up to 2-5 \% in the four jet final states in Tevatron and LHC kinematics. However, the effective absence of Sudakov suppression gives hope that although they are small relative to color singlet correlations, they eventually can be observed.