Unified model of current-hadronic interactions

A model for current-hadronic interactions is constructed which satisfies (a) Mandelstam analyticity, (b) crossing symmetry, (c) scale invariance in the deep-inelastic region, (d) Regge behavior in all channels, (e) resonance poles in the unphysical sheet, (f) generalized vector-meson dominance, and (g) SU(3) structure of the currents. There is a fixed pole in the charged photon-proton scattering amplitude, so that the Dashen-Fubini-Gell-Mann and Adler sum rules are satisfied. Good fits are obtained for Compton scattering at energies above 5 GeV for all experimentally available values of ---q², and also for all deep-inelastic electroproduction data. By fixing all parameters with these fits, and with preliminary data obtained from deep-inelastic experiments on production by neutrinos, we are able to make parameter-free predictions of ρ⁰ and ω⁰ photoproduction and electroproduction, which agree well with the data.