A universal Regge pole model for all vector meson exclusive photoproduction by real and virtual photons

E. Martynov; E. Predazzi; A. Prokudin

doi:doi:10.1140/epjc/s2002-01058-5

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Particles and Fields

Eur. Phys. J. C 26, 271-284 (2002)
DOI: 10.1140/epjc/s2002-01058-5

A universal Regge pole model for all vector meson exclusive photoproduction by real and virtual photons

E. Martynov¹, E. Predazzi^{2, 3} and A. Prokudin^{2, 3, 4}

¹ Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Metrologicheskaja 14b, 03143 Kiev-143, Ukraine
² Dipartimento di Fisica Teorica, Università Degli Studi Di Torino, Via Pietro Giuria 1, 10125 Torino, Italy
³ Sezione INFN di Torino, Via Pietro Giuria 1, 10125 Torino, Italy
⁴ Institute For High Energy Physics, 142281 Protvino, Russia

(Received: 18 December 2001 / Published online: 25 October 2002 )

Abstract
A model based on a dipole pomeron framework for exclusive vector meson photoproduction by real and virtual photons shows very good agreement with the experimental data. This model does not violate unitarity constraints and describes in a universal manner all the available data for $\rho$ , $\omega$ , $\varphi$ , $J/\psi$ and $\Upsilon$ vector meson photoproduction in the region of energies $1.7\le W \le 250{\mathrm {\,GeV}}$ and photon virtualities $0 \le Q^2 \le 35{\mathrm {\,GeV}}^2$ .