Recent Results from Investigations of Diffractive Vector Meson Production with the ZEUS Detector at HERA

Abstract

We present results from recent investigations of diffractive vector meson production using the ZEUS detector at HERA. These consist of measurements of rho production in the region of photon virtuality 0.25 < Q^2 < 0.85 GeV^2, of rho, phi, and J/psi production for values of the momentum transfer to the proton 0.3 < |t| < 4.0 GeV^2, and of elastic J/psi production both in photoproduction and for Q^2 > 2 GeV^2.