Measurement of eta photoproduction on the proton from threshold to 1500 MeV

Abstract

Beam asymmetry and differential cross section for the reaction gamma+p->eta+p were measured from production threshold to 1500 MeV photon laboratory energy. The two dominant neutral decay modes of the eta meson, eta->2g and eta->3pi0, were analyzed. The full set of measurements is in good agreement with previously published results. Our data were compared with three models. They all fit satisfactorily the results but their respective resonance contributions are quite different. The possible photoexcitation of a narrow state N(1670) was investigated and no evidence was found.

18 pages, 14 figures, 4 tables Submitted to EPJA

References in corpus (2)

• Measurement of the beam asymmetry in eta-photoproduction off the proton
• Measurement of the reaction gamma p --> K0 Sigma+ at photon energies up to 2.6 GeV

Cited by in corpus (25)

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• Quasifree photoproduction of $\eta$ mesons off protons and neutrons
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• Photoproduction of eta meson within a coupled-channels K-matrix approach
• P-wave excited baryons from pion- and photo-induced hyperon production
• Light baryon resonances from a coupled-channel study including $\mathbf{K\Sigma }$ photoproduction
• Evidence for Narrow N*(1685) Resonance in Quasifree Compton Scattering on the Neutron
• Study of $\eta$ photoproduction on the proton in a chiral constituent quark approach via one-gluon-exchange model
• New Narrow Nucleon N*(1685)
• Observation of the $p{\eta }^{\prime }$ Cusp in the New Precise Beam Asymmetry $\Sigma$ Data for $\gamma p\to p\eta$
• Beam asymmetry $\Sigma$ measurements on the ${\pi }^{-}$ photoproduction off neutrons
• Evidence for narrow resonant structures at $W\approx 1.68$ and $W\approx 1.72$ GeV in real Compton scattering off the proton
• Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model
• eta photoproduction and N* resonances
• Vector transition form factors of the $N{K}^{\ast }\to {\Theta }^{+}$ and $N{\bar{K}}^{\ast }\to {\Sigma }_{\overline{10}}^{\ast -}$ in the SU(3) chiral quark-soliton model
• Chiral constituent quark model study of the process $\gamma p\to \eta p$
• Differential cross sections and photon beam asymmetries of $\eta$ photoproduction on the proton at $E_{\gamma }$ = 1.3-2.4 GeV
• Energy dependent analysis of eta-meson photoproduction on protons and neutrons without background in the energy region up to 3.4 GeV
• Amplitude- and truncated partial-wave analyses combined: A novel, almost theory-independent single-channel method for extracting photoproduction multipoles directly from measured data
• Photoproduction of $\eta$ mesons off the proton for $1.2<E_{\gamma }<4.7$ GeV using CLAS at Jefferson Laboratory
• Configuration Mixing of Quark States in Baryons
• Truncated Partial-Wave Analysis for $\eta$-photoproduction observables via Bayesian Statistics