A chiral quark model for meson electro-production in the S11 partial wave

Abstract

We calculate the meson scattering and electro-production amplitudes in the S11 partial wave in a coupled-channel approach that incorporates quasi-bound quark-model states. Using the quark wave functions and the quark-meson interaction from the Cloudy Bag Model, we obtain a good overall agreement with the available experimental results for the partial widths of the N(1535) and the N(1650) resonances as well as for the pion, eta and kaon electro-production amplitudes. Our model is consistent with the N(1535) resonance being dominantly a genuine three-quark state rather than a quasi-bound state of mesons and baryons.

10 pages, 13 figures

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• A chiral quark model for meson electro-production in the S11 partial wave
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Cited by in corpus (13)

• Electroexcitation of nucleon resonances
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• A covariant model for the gamma N -> N(1535) transition at high momentum transfer
• Electromagnetic Transition Form Factors of Baryon Resonances
• Strong decay of low-lying $S_{11}$ and $D_{13}$ nucleon resonances to pseudoscalar mesons and octet baryons
• Using the Single Quark Transition Model to predict nucleon resonance amplitudes
• A chiral quark model for meson electro-production in the region of D-wave resonances
• A chiral quark model for meson electro-production in the S11 partial wave
• Correlations of $\mathbf{\pi N}$ Partial Waves for Multi-Reaction Analyses
• The Roper resonance: a genuine quark state or a dynamically generated structure?
• Eta and kaon production in a chiral quark model
• Dynamical generation of resonances in the P33 partial wave
• The $\Lambda (1405)$ resonance as a genuine three-quark or molecular state