2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36817First inclusive measurements of isolated prompt photons in photoproduction at HERA have been made with the ZEUS detector. Cross sections are given as a function of the pseudorapidity and the transverse energy of the photon, for E_T^gamma > 5 GeV in the gamma-p centre-of-mass energy range 134-285 GeV. Comparisons are made with predictions from LO Monte Carlo models and NLO QCD calculations. For forward eta^gamma (proton direction) good agreement is found, but in the rear direction all predictions fall below the data.for the ZEUS Collaboration; Talk given at the 8th International Workshop on Deep Inelastic Scattering and QCD (DIS'2000), Liverpool, UK, April 25-30, 2000High Energy Physics - Experimenttext