Photo- and Electroproduction of Eta Mesons

Abstract

Eta photo- and electroproduction off the nucleon is investigated in an effective lagrangian approach that contains Born terms and both vector meson and nucleon resonance contributions. In particular, we review and develop the formalism for coincidence experiments with polarization degrees of freedom. The different response functions appearing in single and double polarization experiments have been studied. We will present calculations for structure functions and kinematical conditions that are most sensitive to details of the lagrangian, in particular with regard to contributions of nucleon resonances beyond the dominant $S_{11}$(1535) resonance.

24 pages RevTeX/LaTeX2.09, NFSS1, 13 figures (in separate file (tar,gzip and uue)), accepted for publication in Z. Phys. A

References in corpus (2)

• The $\eta$NN Coupling in Eta Photoproduction
• Off-shell Behavior of the $\pi -\eta$ Mixing Amplitude

Cited by in corpus (68)

• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Unitary Isobar Model - MAID2007
• Baryons as relativistic three-quark bound states
• Baryon spectroscopy
• Electromagnetic excitation of the Delta(1232)-resonance
• Progress Toward Understanding Baryon Resonances
• Electroexcitation of nucleon resonances
• Electromagnetic Meson Production in the Nucleon Resonance Region
• Photon- and meson-induced reactions on the nucleon
• Study of Non-Strange Baryon Resonances with Meson Photoproduction
• First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction
• An isobar model for eta photo- and electroproduction on the nucleon
• The e p -> e' p eta reaction at and above the S11(1535) baryon resonance
• Q^2 Dependence of the S_{11}(1535) Photocoupling and Evidence for a P-wave resonance in eta electroproduction
• Determining pseudoscalar meson photo-production amplitudes from complete experiments
• Measurement of the beam asymmetry in eta-photoproduction off the proton
• Kaon photoproduction in a multipole approach
• First Measurement of Transferred Polarization in the Exclusive e p --> e' K+ Lambda Reaction
• Separated Structure Functions for the Exclusive Electroproduction of $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ Final States
• Linearly polarised photon beams at ELSA and measurement of the beam asymmetry in pi^0-photoproduction off the proton
• Photoproduction of eta meson within a coupled-channels K-matrix approach
• Eta and Etaprime Photoproduction on the Nucleon with the Isobar Model EtaMAID2018
• Analysis of resonance multipoles from polarization observables in eta photoproduction
• Electroproduction of Eta Mesons in the S11(1535) Resonance Region at High Momentum Transfer
• Hadron structure at low Q^2
• Beam-Recoil Polarization Transfer in the Nucleon Resonance Region in the Exclusive $\vec{e}p\to e^{\prime }{K}^{+}\vec{\Lambda }$ and $\vec{e}p\to e^{\prime }{K}^{+}{\vec{\Sigma }}^0$ Reactions at CLAS
• Photoproduction of $K\Lambda$ on the proton
• $\eta$ photoproduction on the quasi-free nucleons in the chiral quark model
• Electromagnetic production of kaon near threshold
• Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for $p(\vec{e},e^{\prime }{K}^{+})\Lambda$ in the Nucleon Resonance Region
• Model Selection for Pion Photoproduction
• Photo- and Electrocouplings of Nucleon Resonances
• Quark model approach to the $\eta$ meson electroproduction on the proton
• Electromagnetic production of $K\Sigma$ on the nucleon near threshold
• Study of polarized-e polarized-p --> e-prime p pi0 in the Delta(1232) mass region using polarization asymmetries
• The Generalized Gerasimov-Drell-Hearn Integral and the Spin Structure of the Nucleon
• Amplitude reconstruction from complete electroproduction experiments and truncated partial-wave expansions
• Coupled $K^{+}\Lambda$ and $K^0\Lambda$ photoproduction off the nucleon: Consequences from the recent CLAS and MAMI data and the $N(1680)P_{11}$ narrow state
• Photoproduction of $\eta$-mesons off C and Cu nuclei for photon energies below 1.1 GeV
• Evidence for a backward peak in the gamma+d->pi^0+d cross section near the eta threshold
• Unexpected impact of D waves in low-energy neutral pion photoproduction from the proton and the extraction of multipoles
• Are hyperon resonances required in the elementary $K^{+}\Lambda$ photoproduction?
• Chiral Dynamics in Photo-Pion Physics: Theory, Experiment, and Future Studies at the HI$\gamma$S Facility
• Induced polarization of Λ(1116) in kaon electroproduction
• Coherent eta photoproduction on the deuteron in the $S_{11}$ resonance region
• Recoil polarization and beam-recoil double polarization measurement of ηelectroproduction on the proton in the region of the S_{11}(1535) resonance
• Kaon and Hyperon Form Factors in Kaon Electroproduction on the Nucleon
• Kaon photoproduction on the nucleon: Contributions of kaon-hyperon final states to the magnetic moment of the nucleon
• Ratio of ${\sigma }_L/{\sigma }_T$ for $p(e,e^{\prime }{K}^{+})\Lambda$ Extracted from Polarization Transfer
• Beam-Recoil Transferred Polarization in $K^{+}Y$ Electroproduction in the Nucleon Resonance Region with CLAS12
• Polarization observables in the longitudinal basis for pseudo-scalar meson photoproduction using a density matrix approach
• Threshold pion electro- and photoproduction off nucleons in covariant chiral perturbation theory
• On the reaction g d -> pi0 d near the threshold of eta production
• Two-body effects in coherent eta-meson photoproduction on the deuteron in the region of the S_11(1535) resonance
• Measurement of polarisation observables in $K_s^0{\Sigma }^{+}$ photoproduction off the proton
• Quasifree Lambda, Sigma^0, and Sigma^- electroproduction from 1,2H, 3,4He, and carbon
• Pure spin-3/2 representation with consistent interactions
• Incoherent Photoproduction of $\eta$-mesons from the Deuteron near Threshold
• Minimal complete sets for two pseudoscalar meson photoproduction
• Photon induced K$\Lambda$ production on the proton in the low energy region
• A polarization relation and the measurement of the longitudinal response in pseudoscalar meson electroproduction off the nucleon
• Gerasimov-Drell-Hearn Sum Rule and the Discrepancy between the New CLAS and SAPHIR Data
• Generalized polarizabilities and electroexcitation of the nucleon
• Measuring longitudinal amplitudes for electroproduction of pseudoscalar mesons using recoil polarization in parallel kinematics
• Photoproduction of Pentaquark in Feynman and Regge Theories
• Charged current (anti)neutrino induced eta production off the nucleon
• Rescattering effects in coherent eta-photoproduction on the deuteron
• Physics at ELSA