2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202310We present a new measurement of the total photoproduction cross section performed with the H1 detector at HERA. For an average centre of mass energy of 200~GeV a value of $σ_{tot}^{γ{p}}= 165\pm2\pm11μ$b has been obtained. A detailed analysis of the data in adequate kinematic regions enabled a decomposition of the total cross section in its elastic, single diffractive dissociation and remaining non-diffractive parts, based on safe assumptions on the double diffractive dissociation contribution.20 pages, latex, 6 figures appended as uuencoded fileHigh Energy Physics - Experimenttext