2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38205Advances in knowledge of the structure of the photon and tests of perturbative QCD have been made using the increased luminosity with the ZEUS detector at HERA. Events with a low photon virtuality and two high transverse energy jets have been studied. Measurements of inclusive dijet and multijet production are herein compared to Next-to-Leading-Order calculations. In order to analyse the structure of the photon, dijet production of quasi-real and virtual photons and dijet production containing $D^{*\pm}$ mesons were measured.10 pages, 14 figures, to appear in Hadron Structure '98 conference proceedingsHigh Energy Physics - Experimenttext