Diffractive heavy vector meson production from the BFKL equation

Abstract

Diffractive heavy vector meson photoproduction accompanied by proton dissociation is studied for arbitrary momentum transfer. The process is described by the non-forward BFKL equation, for which a complete analytical solution is found, giving the scattering amplitude. The impact of non-leading corrections to the BFKL equation is also analysed. Results are compared to the HERA data on J/psi production.

20 pages, 8 figures, version to appear in EPJC. Discussion of infrared details expanded

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