Forward Photoproduction of Vector Mesons from Hydrogen at Energies from 6.5 to 17.8 gev

Abstract

We report measurements of the differential cross sections of ${\rho }^0$- and $\varphi$-meson photo-production on hydrogen for a range of the square of the four-momentum transfer $t$ from -0.2 to -0.9 ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$ and a range of incident photon energies from 6.5 to 17.8 GeV. We find that differential cross sections obtained for ${\rho }^0$ production are in good agreement with the vector-dominance model.