N* decays to Nω from new data on γp → ωp

Data on the reaction gamma p -> omega p with omega -> pi(0)gamma, taken with unpolarized or polarized beams in combination with an unpolarized or polarized proton-target, were analyzed within the Bonn-Gatchina (BnGa) partial wave analysis. Differential cross sections, several spin density matrix elements, the beam asymmetry Sigma, the normalized helicity difference E, and the correlation G between linear photon and longitudinal target polarization were included in a large data base on pion and photo-induced reactions. The data on omega photoproduction are used to determine twelve N* -> N omega branching ratios; most of these are determined for the first time. (C) 2016 The Authors. Published by Elsevier B.V.