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

oleh: I. Denisenko, A.V. Anisovich, V. Crede, H. Eberhardt, E. Klempt, V.A. Nikonov, A.V. Sarantsev, H. Schmieden, U. Thoma, A. Wilson

Format: Article
Diterbitkan: Elsevier 2016-04-01

Deskripsi

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.