Study of the $\gamma p\to {\pi }^0\eta p$ reaction with the A2 setup at MAMI

Abstract

The data available from the A2 Collaboration at MAMI were analyzed to select the $\gamma p\to {\pi }^0\eta p$ reaction on an event-by-event basis, which allows for partial-wave analyses of three-body final states to obtain more reliable results, compared to fits to measured distributions. These data provide the world's best statistical accuracy in the energy range from threshold to $E_{\gamma }=1.45$ GeV, allowing a finer energy binning in the measurement of all observables needed for understanding the reaction dynamics. The results obtained for the measured observables are compared to existing models, and the impact from the new data is checked by the fit with the revised Mainz model.

arXiv comment15 pages, 18 figures

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Cited by in corpus (10)

• Light Baryon Spectroscopy
• Photoproduction Reactions and Non-Strange Baryon Spectroscopy
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Resonance-like structure near the $\eta d$ threshold in the $\gamma d${$\to$}${\pi }^0\eta d$ reaction
• First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons
• Helicity-dependent cross sections for the photoproduction of ${\pi }^0$ pairs from nucleons
• Coherent photoproduction of the neutral pion and eta meson on the deuteron at incident energies below 1.15 GeV
• Theoretical study of the $\gamma d\to {\pi }^0\eta d$ reaction
• Measurement of the beam-helicity asymmetry in photoproduction of ${\pi }^0\eta$ pairs on carbon, aluminum, and lead
• Search for the $N$(1685) in $\eta \pi$-Photoproduction