$η$ and $η'$ photoproduction with EtaMAID including Regge phenomenology
V. L. Kashevarov, L. Tiator, M. Ostrick · arXiv (Cornell University) · 2018
We present a new version of the EtaMAID model for $η$ and $η'$ photoproduction on nucleons. The model includes 23 nucleon resonances parameterized with Breit-Wigner shapes. The background is described by vector and axial-vector meson exchanges in the $t$ channel using the Regge cut phenomenology. Parameters of the resonances were obtained from a fit to available experimental data for $η$ and $η'$ photoproduction on protons and neutrons. The nature of the most interesting observations in the data is discussed.