Omega photoproduction beyond the resonance region at small u

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Within the meson exchange model we study $ω$ meson photoproduction at energies above the s channel resonance region. Different model prescriptions for the $ω{NN}$ vertex function are investigated imposing gauge invariance as well as crossing symmetry. The calculations reproduce the energy dependence of the differential $ω$ photoproduction cross sections at moderate $|u|$ for $E_γ{\le}4.7$ GeV, which previously were discussed as an indication of the hard interaction between the photon and quarks of the nucleon.
8 pages, 7 figures, RevTeX4

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/81818

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/0202083
 http://arxiv.org/abs/nucl-th/0202083

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arXiv