2001/08/13 by H. Babacan, T. Babacan, A. Gokalp +1
Physics and Astronomy · #nucl-th
published as Eur.Phys.J. A13 (2002) 355-362 · 29 pages, RevTex, 6 PS Figures
arxiv created 2001/08/13 · arxiv updated 2009/12/01
The ω-meson photoproduction, γ+p→ p+ω, is studied in the framework of a model, containing π-meson exchange in t-channel and nucleon-exchange in s- and u-channels. Considering both ωNN-coupling constants in the region of time-like meson four momenta as the free parameters, we find different sets of solutions for these constants from the existing data on the t-dependence of the differential cross sections, dσ(γ+p→ p+ω)/dt, in the near threshold region Eγ≤ 2 GeV. These sets of ωNN-coupling constants, corresponding to destructive and constructive π\bigotimes N-interference contributions to dσ/dt can be well distinguished by measurements of beam asymmetry, induced by linear photon polarization.