2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/156245Data for the differential cross sections for $γ^* p\toρ^0 p$, $γ^* p \to ϕp$ and $γ^* p\to J/ψp$, at all available values of $Q^2$, fit very well to a combination of soft pomeron, hard pomeron and $f_2$ exchange.8 pages, 6 figuresHigh Energy Physics - Phenomenologytext