Vector Meson Photoproduction at High-t and Comparison to HERA Data

Details Vector Meson Photoproduction at High-t and Comparison to HERA Data Vector Meson Photoproduction at High-t and Comparison to HERA Data

2001-07-06

arxiv.org/abs/hep-ph/0107068v3

Eur.Phys.J.C26:411-415,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages including 2 postscript figures

Scientific paper

10.1140/epjc/s2002-01078-1

We explore QCD calculations for the process gamma p -> V X where V is a vector meson, in the region s >> -t and -t >> Lambda_QCD^2. We compare our calculations for the J/psi, phi and rho mesons with data from the ZEUS Collaboration at HERA and demonstrate that the BFKL approach is consistent with the data even for light mesons, whereas the two-gluon exchange approach is inadequate. We also predict the differential cross-sections for the Upsilon and omega for which no data are currently available.

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