A Low-Nussinov Model for gamma* p -> V p

Details A Low-Nussinov Model for gamma* p -> V p A Low-Nussinov Model for gamma* p -> V p

1997-06-09

arxiv.org/abs/hep-ph/9706289v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages LaTeX, 6 Postscipt figures. Contribution to the XXXIInd Rencontre de Moriond on "QCD and High Energy Hadronic Interact

Scientific paper

We show that the lowest-order QCD calculation in a simple model of elastic vector-meson production does reproduce correctly the ratios of cross sections for rho, phi and J/psi (measured by H1 and ZEUS), both in photoproduction and in high-Q^2 quasi-elastic scattering. The mass and Q^2 dependence of the cross sections is reproduced as well. We also examine the lower-energy data, and see that the energy dependence of the cross section does not depend on Q^2, and that a comparison with rho and phi data from NMC suggests a soft pomeron intercept.

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