2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214499An NLO photon parton parametrization is presented based on the existing $F_2^γ$ measurements from $e^+e^-$ data and the low-$x$ proton structure function from $ep$ interactions. Also included in the extraction of the NLO parton distribution functions are the dijets data coming from $γp \to j_1 + j_2 +X$. The new parametrization is compared to other NLO parametrizations.22 pages, 7 figures, 2 tablesHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext