Omega photoproduction beyond the resonance region at small u

Details Omega photoproduction beyond the resonance region at small u Omega photoproduction beyond the resonance region at small u

2002-02-28

arxiv.org/abs/nucl-th/0202083v1

Physics

Nuclear Physics

Nuclear Theory

8 pages, 7 figures, RevTeX4

Scientific paper

Within the meson exchange model we study $\omega$ meson photoproduction at energies above the s channel resonance region. Different model prescriptions for the $\omega{NN}$ vertex function are investigated imposing gauge invariance as well as crossing symmetry. The calculations reproduce the energy dependence of the differential $\omega$ photoproduction cross sections at moderate $|u|$ for $E_\gamma{\le}4.7$ GeV, which previously were discussed as an indication of the hard interaction between the photon and quarks of the nucleon.

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