eta-photoproduction in the resonance energy region

Abstract

The $\eta$ production in the nucleon resonance energy region is studied within the unitary coupled-channels effective Lagrangian approach of the Giessen model. We demonstrate that the second peak recently observed in the cross section of $\eta$ photoproduction on the neutron at $\sqrt{s}$=1.66 GeV can be explained in terms of coupled-channel effects due to $S_{11}(1650)$ and $P_{11}(1710)$ resonance excitations.

References in corpus (24)

• Diquarks and Exotic Spectroscopy
• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Quasi-Two-Body Decays of Nonstrange Baryons
• Evidence for a missing nucleon resonance in kaon photoproduction
• Strange Decays of Nonstrange Baryons
• Photon- and meson-induced reactions on the nucleon
• Updated resonance photo-decay amplitudes to 2 GeV
• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV I: pion-induced results and hadronic parameters
• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV II: photon-induced results
• Photoproduction of eta mesons off protons for photon energies from 0.75 GeV to 3 GeV
• Evidence for a narrow structure at W~1.68 GeV in eta photoproduction on the neutron
• Coupled-channel analysis of the $\omega$-meson production in $\pi N$ and $\gamma N$ reactions for c.m. energies up to 2 GeV
• A coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region
• Pion-nucleon scattering in a meson-exchange model
• Nonstrange and other unitarity partners of the exotic Theta+ baryon
• A reggeized model for eta and eta-prime photoproduction
• Differential cross section measurement of eta photoproduction on the proton from threshold to 1100 MeV
• Dynamical coupled-channel approach to hadronic and electromagnetic production of kaon-hyperon on the proton
• Kaon photoproduction in a multipole approach
• Spin-5/2 resonance contributions to the pion-induced reactions for energies $\sqrt{s}⩽$2.0 GeV
• Extraction of radiative decay width for the non-strange partner of Theta^+
• eta-meson photoproduction off protons and deuterons
• Extraction of the Ratio of the N^*(1535) Electromagnetic Helicity Amplitudes from Eta Photoproduction off Neutrons and Protons

Cited by in corpus (65)

• Baryons as relativistic three-quark bound states
• Baryon spectroscopy
• Progress Toward Understanding Baryon Resonances
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Unitarized Chiral Perturbation Theory in a finite volume: scalar meson sector
• Electromagnetic Excitation of Nucleon Resonances
• Photoproduction of $\eta$ and $\eta \prime$ Mesons off Protons
• ${\pi }^{+}$ photoproduction on the proton for photon energies from 0.725 to 2.875 GeV
• Quasi-free photoproduction of eta-mesons of the neutron
• Eta-meson production in the resonance energy region
• On the cross section ratio sigma_n/sigma_p in eta photoproduction
• Quasi-free photoproduction of eta-mesons off the deuteron
• $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ photoproduction with fine center-of-mass energy resolution
• Light Baryon Spectroscopy
• Quasifree photoproduction of $\eta$ mesons off protons and neutrons
• Photoproduction of $\eta$ mesons off neutrons from a deuteron target
• Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis
• Photoproduction of mesons off nuclei
• A narrow structure in the excitation function of eta-photoproduction off the neutron
• Photoproduction of eta meson within a coupled-channels K-matrix approach
• Eta and Etaprime Photoproduction on the Nucleon with the Isobar Model EtaMAID2018
• Pion- and photo-induced transition amplitudes to $\Lambda K$, $\Sigma K$, and $N\eta$
• A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
• P-wave excited baryons from pion- and photo-induced hyperon production
• $\eta$ photoproduction on the quasi-free nucleons in the chiral quark model
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• Coupled-channel analysis of $K\Sigma$ production on the nucleon up to 2.0 GeV
• Evidence for Narrow N*(1685) Resonance in Quasifree Compton Scattering on the Neutron
• Electromagnetic Transition Form Factors of Baryon Resonances
• Insight into the narrow structure in {\boldmath{$\eta$}}-photoproduction on the neutron from helicity dependent cross sections
• Strong decay of low-lying $S_{11}$ and $D_{13}$ nucleon resonances to pseudoscalar mesons and octet baryons
• Quasi-free photoproduction of eta-mesons off 3He nuclei
• Evidence for the J^p=1/2^+ narrow state at 1650 MeV in the photoproduction of KLambda
• New Narrow Nucleon N*(1685)
• Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Sign ambiguity in the K Sigma channel
• Neutral pion photoproduction on the nucleon in a chiral quark model
• $2\pi$ production in the Giessen coupled-channel model
• Partial-wave analysis of π-p {\to} ηn and π-p {\to} K0Λ reactions
• Evidence for narrow resonant structures at $W\approx 1.68$ and $W\approx 1.72$ GeV in real Compton scattering off the proton
• Photoproduction of eta mesons from the neutron: cross sections and double polarization observable E
• eta photoproduction and N* resonances
• $K^0\Lambda$ photoproduction off the neutron with nucleon resonances
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Is there a narrow $N(1685)$?
• Observation of Narrow $N^{+}(1685)$ and $N^0(1685)$ Resonances in $\gamma N\to \eta \pi N$ Reactions
• Fixed-t analyticity as a constraint in single energy partial wave analyses of meson photoproduction reactions
• Combined analysis of the ${\pi }^{-}p\to K^0\Lambda$, $\eta n$ reactions in a chiral quark model
• Eta and kaon production in a chiral quark model
• Effects of nucleon resonances on $\eta$ photoproduction off the neutron reexamined
• On strange SU(3) partners of Theta+
• Energy dependent analysis of eta-meson photoproduction on protons and neutrons without background in the energy region up to 3.4 GeV
• The nucleon resonances in the $J/\psi \to p\bar{p}{\eta }^{\prime }$ decay
• Search for narrow resonances in $\pi p$ elastic scattering from the EPECUR experiment
• Configuration Mixing of Quark States in Baryons
• Mass splittings of the baryon decuplet and antidecuplet with the second-order flavor symmetry breakings within a chiral soliton model
• On Narrow Nucleon Excitation N*(1685)
• New Narrow $N(1685)$ and $N(1726)$? Remarks on the Interpretation of the Neutron Anomaly as an Interference Phenomenon
• Compton scattering off proton in the third resonance region
• Search for the $N$(1685) in $\eta \pi$-Photoproduction
• New narrow N*(1685) resonance: review of observations
• New narrow nucleon resonances $N^{\ast }(1685)$ and $N^{\ast }(1726)$ within the chiral quark-soliton model