Prompt photon photoproduction at HERA in the kT -factorization approach

We present the results of the numerical calculations of inclusive and associated with a jet prompt photon photoproduction at HERA in the framework of the kT-factorization approach. The proposed method is based on the O(a 2 as) amplitudes for gq → ggq and gg ∗ → gq¯ q partonic subprocesses. Additionally, we take into account the O(a 2 a 2 s ) box contributions gg → gg to the production cross sections. Our predictions are compared with the ZEUS experimental data.