Vector Meson Photoproduction in the Soft Dipole Pomeron Model Framework

Details Vector Meson Photoproduction in the Soft Dipole Pomeron Model Framework Vector Meson Photoproduction in the Soft Dipole Pomeron Model Framework

2002-11-27

arxiv.org/abs/hep-ph/0211430v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented by A. PROKUDIN at the Second International "Cetraro" Workshop & NATO Advanced Research Workshop "Diffraction 20

Scientific paper

Exclusive photoproduction of all vector mesons by real and virtual photons is considered in the Soft Dipole Pomeron model. It is emphasized that being the Pomeron in this model a double Regge pole with intercept equal to one, we are led to rising cross-sections but the unitarity bounds are not violated. It is shown that all available data for $\rho, \omega, \phi, J/\psi $ and $\Upsilon $ in the region of energies 1.7 $\leq W \leq $ 250 GeV and photon virtualities 0 $\leq Q^2 \leq $ 35 GeV$^2$, including the differential cross-sections in the region of transfer momenta 0 $\leq |t| \leq$ 1.6 GeV$^2$, are well described by the model.

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