Exclusive photoproduction of {\bf ${\rm Y}$} mesons at HERA

Abstract

The exclusive photoproduction reaction gamma p --> Upsilon p has been studied with the ZEUS experiment in ep collisions at HERA using an integrated luminosity of 468 pb^{-1}. The measurement covers the kinematic range 60<W<220 GeV and Q^2<1 GeV^2, where W is the photon-proton centre-of-mass energy and Q^2 is the photon virtuality. These results, which represent the analysis of the full ZEUS data sample for this channel, are compared to predictions based on perturbative QCD.

13 pages, 2 figures and 1 Table

References in corpus (3)

• Exclusive photoproduction of Upsilon: from HERA to Tevatron
• Small x gluon from exclusive J/psi production
• Measurement of beauty production from dimuon events at HERA

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