pi and rho loop corrections to omega photoproduction in the resonance region

Abstract

One-loop corrections due to the intermediate $\pi N$ and $\rho N$ states are studied in $\omega$ photoproduction near threshold. Our results show that the coupled-channel effects should be taken into account in extracting reliable nucleon resonance parameters from the forthcoming vector meson photoproduction data in the resonance region.

arXiv comment4 pages, to be published in the proceedings of XVI International Conference on Particles and Nuclei (PANIC'02), Osaka, Japan, Sep. 30 - Oct. 4, 2002

References in corpus (10)

• Meson-exchange Model for $\pi N$ scattering and $\gamma N->\pi N$ reaction
• Photoproduction of vector mesons off nucleons near threshold
• Nucleon resonances in omega photoproduction
• Photoproduction of phi(1020) mesons on the proton at large momentum transfer
• Photoproduction of phi mesons from the proton: Polarization observables and strangeness in the nucleon
• DRAFT: Photoproduction of the ${\rho }^0$ meson on the proton at large momentum transfer
• Nucleonic resonance excitations with linearly polarized photon in $\gamma p\to \omega p$
• One-loop corrections to omega photoproduction near threshold
• Pi N -> Omega N in a Coupled-Channel Approach
• Study of Nucleon Resonances with Double Polarization Observables of Pion Photoproduction

Cited by in corpus (2)

• Coupled-channel analysis of the $\omega$-meson production in $\pi N$ and $\gamma N$ reactions for c.m. energies up to 2 GeV
• Photon beam asymmetry $\Sigma$ in the reaction $\vec{\gamma }p\to p\omega$ for $E_{\gamma }$ = 1.152 to 1.876 GeV