Polarization phenomena in vector meson photoproduction on nucleons near threshold

Date

2000-10-21

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Babacan, H
Babacan, T
Gokalp, A
Yılmaz, Osman

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We propose and develop a model for rho (0) and omega photoproduction on nucleons near threshold based on t-, s-, and u-channel amplitudes. In t-channel we consider pi- and sigma- exchanges and we take the coupling constants (g(v), g(t)) in (s+u) nucleon contributions as free parameters. We fit our model to the available experimental differential cross-section data of gamma + p --> p + V reactions. We find that different models which are equivalently good for the description of the differential cross-section on proton targets may be differentiated by their predictions of the beam asymmetry on proton and neutron targets and of the differential cross-section on neutron targets.

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https://hdl.handle.net/11511/62949

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Citation Formats

H. Babacan, T. Babacan, A. Gokalp, and O. Yılmaz, “Polarization phenomena in vector meson photoproduction on nucleons near threshold,” 2000, vol. 570, p. 551, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62949.