Pair Production of in the Color Evaporation Model and the Parton Reggeization Approach

This article studies single and double hadroproduction in the color evaporation model. The calculations are performed in the parton Reggeization approach, which is based on the -factorization of hard processes in multi-Regge kinematics, the Kimber–Martin–Ryskin–Watt (KMRW) model for unintegrated parton distribution functions, and the effective field theory of Reggezied gluons and quarks suggested by L.N. Lipatov. We compare contributions from single and double parton scattering mechanisms. The numerical calculations are carried out using the KaTie program.