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Denisenko, I.; Anisovich, A.V.; Crede, V.; Eberhardt, H.; Klempt, E.; Nikonov, V.A.; Sarantsev, A.V.; Schmieden, H.; Thoma, U.; Wilson, A.
Physics letters. B, 04/2016, Letnik: 755Journal Article
Data on the reaction γp→ωp with ω→π0γ, 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 Σ, 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 ω photoproduction are used to determine twelve N⁎→Nω branching ratios; most of these are determined for the first time.
