Photoproduction of $\eta$ and $\eta \prime$ Mesons off Protons

Abstract

Total and differential cross sections for $\eta$ and ${\eta }^{\prime }$ photoproduction off the proton have been determined with the CBELSA/TAPS detector for photon energies between 0.85 and 2.55 GeV. The $\eta$ mesons are detected in their two neutral decay modes, $\eta \to \gamma \gamma$ and $\eta \to 3{\pi }^0\to 6\gamma$, and for the first time, cover the full angular range in $\cos {\theta }_{\mathrm{cm}}$ of the $\eta$ meson. These new $\eta$ photoproduction data are consistent with the earlier CB-ELSA results. The ${\eta }^{\prime }$ mesons are observed in their neutral decay to ${\pi }^0{\pi }^0\eta \to 6\gamma$ and also extend the coverage in angular range.

13 pages, 21 figures, updated author list, submitted to PRC

References in corpus (9)

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• eta-photoproduction in the resonance energy region
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Cited by in corpus (72)

• Properties of baryon resonances from a multichannel partial wave analysis
• Progress Toward Understanding Baryon Resonances
• Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)
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• Eta photoproduction in a combined analysis of pion- and photon-induced reactions
• Eta-meson production in the resonance energy region
• Transparency ratio in γA -> η' A' and the in-medium η' width
• Determination of the η'-nucleus optical potential
• Etaprime and Eta Mesons with Connection to Anomalous Glue
• On the cross section ratio sigma_n/sigma_p in eta photoproduction
• Quasi-free photoproduction of eta-mesons off the deuteron
• Quasifree photoproduction of $\eta$ mesons off protons and neutrons
• Light Baryon Spectroscopy
• Combined analysis of eta' production reactions: gamma N -> eta' N, N N -> N N eta', and pi N -> eta' N
• Study of $\eta$ and ${\eta }^{\prime }$ photoproduction at MAMI
• Photoproduction Reactions and Non-Strange Baryon Spectroscopy
• Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis
• Photoproduction of mesons off nuclei
• Eta and Etaprime Photoproduction on the Nucleon with the Isobar Model EtaMAID2018
• Pion- and photo-induced transition amplitudes to $\Lambda K$, $\Sigma K$, and $N\eta$
• Finite-Energy Sum Rules in Eta Photoproduction off the Nucleon
• Photon beam asymmetry $\Sigma$ for $\eta$ and ${\eta }^{\prime }$ photoproduction from the proton
• P-wave excited baryons from pion- and photo-induced hyperon production
• ${\eta }^{\prime }$ photoproduction on the nucleons in the quark model
• Nucleon resonances in the fourth resonance region
• Photoproduction of ω Mesons off the Proton
• Evidence for Narrow N*(1685) Resonance in Quasifree Compton Scattering on the Neutron
• Photoproduction of ${\eta }^{\prime }$-mesons off the deuteron
• Chiral unitary approach to η' N scattering at low energies
• First Measurement of the $\Sigma$ Beam Asymmetry in ${\eta }^{\prime }$ Photoproduction off the Proton near Threshold
• The BGOOD experimental setup at ELSA
• Measurement of the Beam Asymmetry $\Sigma$ in the Forward Direction for pi0 Photoproduction
• Quasi-free photoproduction of eta-mesons off 3He nuclei
• Photoproduction of ${\eta }^{\prime }$ mesons off nuclei and their properties in the nuclear medium
• Proton-${\eta }^{\prime }$ interactions at threshold
• Triangle singularity in ${\tau }^{-}\to {\nu }_{\tau }{\pi }^{-}{f}_0(980)$ ($a_0(980)$) decays
• Search for ${\eta }^{\prime }$ bound nuclei in the ${}^{12}\mathrm{C}(\gamma ,p)$ reaction with simultaneous detection of decay products
• Photoproduction of Neutral Pions off Protons
• Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons
• The η'-carbon potential at low meson momenta
• The MAID Legacy and Future
• $N^{\ast }\to N{\eta }^{\prime }$ decays from photoproduction of ${\eta }^{\prime }$-mesons off protons
• Evidence for a negative-parity spin-doublet of nucleon resonances at 1.88\,GeV
• $\eta$ production off the proton in a Regge-plus-chiral quark approach
• Photoproduction of eta mesons from the neutron: cross sections and double polarization observable E
• Analysis of recent eta photoproduction data
• Backward-angle photoproduction of $\omega$ and ${\eta }^{\prime }$ mesons from protons at $E_{\gamma }=1.5-3.0$ GeV
• Low-energy $\eta$-nucleon interaction studied with $\eta$ photoproduction off the deuteron
• Toward a unified description of hadro- and photoproduction: S-wave pi- and eta-photoproduction amplitudes
• Fixed-t analyticity as a constraint in single energy partial wave analyses of meson photoproduction reactions
• Differential cross sections and photon beam asymmetries of $\eta$ photoproduction on the proton at $E_{\gamma }$ = 1.3-2.4 GeV
• Eta and kaon production in a chiral quark model
• Partial-wave analyses of $\gamma p\to \eta p$ \ and $\gamma n\to \eta n$ using a multichannel framework
• Energy dependent analysis of eta-meson photoproduction on protons and neutrons without background in the energy region up to 3.4 GeV
• Primakoff effect in eta-photoproduction off protons
• Photoproduction of $\eta$ mesons off the proton for $1.2<E_{\gamma }<4.7$ GeV using CLAS at Jefferson Laboratory
• Photoproduction of $\eta$ and ${\eta }^{\prime }$ Mesons on Proton
• Analysis of the differential cross section and photon beam asymmetry data for $\gamma p\to {\eta }^{\prime }p$
• Triality selection rules of Octonion and Quantum Mechanics
• In-medium Properties of η' Meson
• Theoretical study of photoproduction of ${\eta }^{\prime }N$ bound state on deuteron target with forward proton emission
• Charged current (anti)neutrino induced eta production off the nucleon
• Effect of the final state interaction of ${\eta }^{\prime }N$ on the ${\eta }^{\prime }$ photoproduction off nucleon
• Possible ${\eta }^{\prime }d$ bound state and its $s$-channel formation in the $\gamma d\to \eta d$ reaction
• The role of angle dependent phase rotations of reaction amplitudes in $\eta$ photoproduction on protons
• Experimental study of $\eta$ meson photoproduction reaction at MAMI
• Near-threshold ${\eta }^{\prime }$ meson production in ${\pi }^{-}A$ reactions
• Photoproductions of $f_1(1285)$ and ${\eta }^{\prime }(958)$ from the analysis of CLAS data with the Primakoff effect at high energies
• Regge Amplitudes for Two-to-Two Reactions
• Comprehensive measurement of ${\eta }^{\prime }$ photoproduction off the proton at $E_{\gamma }<2.4$ $\mathrm{GeV}$
• Exploration of hyperfine interaction between constituent quarks via eta productions
• Backward-angle electroproduction of ${\eta }^{\prime }$ mesons off protons at $W=2.13\text{GeV}$ and $Q^2=0.46{\left(\text{GeV}/c\right)}^2$