Study of $\eta$ photoproduction on the proton in a chiral constituent quark approach via one-gluon-exchange model

Abstract

A formalism based on a chiral quark model ($\chi$QM) approach complemented with a one-gluon exchange model, to take into account the breakdown of the $SU(6)\otimes O(3)$ symmetry, is presented. The configuration mixing of wave functions for nucleon and resonances are derived. % With few adjustable parameters, differential cross-section and polarized beam asymmetry for the $\gamma p\to \eta p$ process are calculated and successfully compared with the data in the centre-of-mass energy range from threshold up to 2 GeV. The known resonances $S_{11}(1535)$, $S_{11}(1650)$, $P_{13}(1720)$, $D_{13}(1520)$, and $F_{15}(1680)$, as well as two new $S_{11}$ and $D_{15}$ resonances are found to be dominant in the reaction mechanism. Besides, connections among the scattering amplitudes of the $\chi$QM approach and the helicity amplitudes, as well as decay widths of resonances are established. Possible contributions from the so-called "missing resonances" are investigated and found to be negligible.

arXiv comment25 pages,3 figures

References in corpus (40)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Spectrum of the Nucleons and the Strange Hyperons and Chiral Dynamics
• Quasi-Two-Body Decays of Nonstrange Baryons
• Algebraic models of hadron structure: I. Nonstrange baryons
• Strange Decays of Nonstrange Baryons
• Photon- and meson-induced reactions on the nucleon
• Algebraic Models of Hadron Structure II. Strange Baryons
• Effective Lagrangian Approach to the Theory of Eta Photoproduction in the $N^{\ast }(1535)$ Region
• Photoproduction of eta mesons off protons for photon energies from 0.75 GeV to 3 GeV
• Decays of Baryon Resonances into K Lambda, K^+ Sigma^0 and K^0 Sigma^+
• A reggeized model for eta and eta-prime photoproduction
• Measurement of eta photoproduction on the proton from threshold to 1500 MeV
• Photoproduction of Baryons Decaying into N pi and N eta
• An Unified Approach To Pseudo Scalar Meson Photoproductions Off Nucleons In The Quark Model
• Measurement of the beam asymmetry in eta-photoproduction off the proton
• Dynamical coupled-channel approach to hadronic and electromagnetic production of kaon-hyperon on the proton
• Quark Model Study of The eta Photoproduction: Evidence for a New S11 Resonance?
• Critique of a Pion Exchange Model for Interquark Forces
• Study of N* Production from J/Psi--> p pbar eta
• Observation of Two New N* Peaks in J/psi -> $pp{i}^{-}\bar{n}$ and $\bar{p}{\pi }^{+}n$ Decays
• Phenomenological study of hadron interaction models
• Coupled-channels study of the ${\pi }^{-}p\to \eta n$ process
• Excitation of S11 resonances in pion scattering and pion photoproduction on the proton
• Time Delay Plots of Unflavoured Baryons
• Magnetic dipole moment of the S11(1535) from the γp \to γηp reaction
• Dynamical coupled-channel model of kaon-hyperon interactions
• The physical meaning of scattering matrix singularities in coupled-channel formalisms
• Baryons, their interactions and the chiral symmetry of QCD
• Nodal trajectories of spin observables and kaon photoproduction dynamics
• Photoproduction of ηmesons on protons in the resonance region:The background problem and the third S_11 resonance
• Strangeness in the proton and N*(1535)
• Dynamical coupled-channel study of K+ Lambda photoproduction
• Negative Parity N* Resonances in an Extended GBE
• Which Constituent Quark Model Is Better?
• Quark spin coupling in baryons - revisited
• Chiral constituent quark model study of the process $\gamma p\to \eta p$
• Test of OPE and OGE through mixing angles of negative parity N* resonances in electromagnetic transitions
• Recent Results on J/ψDecays from BESII
• Results from the Analysis of Crystal Ball Meson Production Measurements at BNL

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• Low energy reaction $K^{-}p\to \Lambda \eta$ and the negative parity $\Lambda$ resonances
• Combined analysis of the ${\pi }^{-}p\to K^0\Lambda$, $\eta n$ reactions in a chiral quark model
• Quark model study of the $\pi N\to \pi N$ reactions up to the $N(1440)$ resonance region
• The contributions of $qqqq\bar{q}$ components to the axial charges of proton and its resonances
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