$N^{\ast }$ decays to $N\omega$ from new data on $\gamma p\to \omega p$

Abstract

Data on the reaction $\gamma p\to \omega p$ with $\omega \to {\pi }^0\gamma$, 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 $N^{\ast }\to N\omega$ branching ratios; most of these are determined for the first time.

6 pages, 4 figures, 2 tables

References in corpus (7)

• Big-Bang Nucleosynthesis
• High statistics study of the reaction $\gamma p\to p2{\pi }^0$
• Photoproduction of the $\omega$ meson off the proton near threshold
• Photoproduction of ω Mesons off the Proton
• Beam asymmetry in near threshold omega photoproduction off the proton
• Measurement of double polarisation asymmetries in $\omega$-photoproduction
• Polarization degrees of freedom in near-threshold photoproduction of omega mesons in the pi^0 gamma decay channel

Cited by in corpus (14)

• Light Baryon Spectroscopy
• Photon beam asymmetry $\Sigma$ for $\eta$ and ${\eta }^{\prime }$ photoproduction from the proton
• Measurement of the helicity asymmetry $E$ in $\omega \to {\pi }^{+}{\pi }^{-}{\pi }^0$ photoproduction
• Nucleon resonances in $\gamma p\to \omega p$ reaction
• $N^{\ast }\to N{\eta }^{\prime }$ decays from photoproduction of ${\eta }^{\prime }$-mesons off protons
• $N^{\ast }$ resonances from $K\Lambda$ amplitudes in sliced bins in energy
• Mapping chiral symmetry breaking in the excited baryon spectrum
• Measurement of the beam asymmetry $\Sigma$ and the target asymmetry $T$ in the photoproduction of $\omega$ mesons off the proton using CLAS at Jefferson Laboratory
• Photon beam asymmetry $\Sigma$ in the reaction $\vec{\gamma }p\to p\omega$ for $E_{\gamma }$ = 1.152 to 1.876 GeV
• Note on the definitions of branching ratios of overlapping resonances
• Dilepton production with the SMASH model
• Polarization observables in double neutral pion photoproduction
• Vertex operators for production of baryon resonances in nucleon-gamma collisions with preserving gauge invariance and analyticity
• First Measurements of the Double-Polarization Observables $F$, $P$, and $H$ in $\omega$ Photoproduction off Transversely Polarized Protons in the $N^{\ast }$ Resonance Region