Electroexcitation of nucleon resonances of the [70,1-] multiplet in a light-front relativistic quark model

Abstract

We utilize a light-front relativistic quark model to predict the 3q core contribution to the electroexcitation of nucleon resonances of the [70,1-] multiplet on the proton and neutron at Q2 < 5GeV2. The investigation is stimulated in large degree by expected progress in the studies of the electroexcitation of nucleon resonances in the third resonance region in the CLAS experiment. For the resonances N(1520)3/2-, N(1535)1/2-, and N(1675)5/2-, experimental data on electroexcitation amplitudes on the proton are available in a wide range of Q2. This allowed us to quantify the expected meson-baryon contributions to these amplitudes as a function of Q2.

12 pages, 12 figures

References in corpus (14)

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• New Results from the Studies of the $N(1440)1/2^{+}$, $N(1520)3/2^{-}$, and $\Delta (1620)1/2^{-}$ Resonances in Exclusive $ep\to e^{\prime }{p}^{\prime }{\pi }^{+}{\pi }^{-}$ Electroproduction with the CLAS Detector
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• Measurements of the gamma*p->Delta Reaction At Low Q^2: Probing the Mesonic Contribution
• Neutral Pion Electroproduction in the Resonance Region at High $Q^2$
• Electroexcitation of the Delta(1232)3/2+ and Delta(1600)3/2+ in a light-front relativistic quark model
• Extracting meson-baryon contributions to the electroexcitation of the $N(1675){\frac{5}{2}}^{-}$ nucleon resonance

Cited by in corpus (10)

• 50 Years of Quantum Chromodynamics
• Structure of the nucleon's low-lying excitations
• Electromagnetic Transition Form Factors of Baryon Resonances
• Nucleon Resonance Structure from Exclusive Meson Electroproduction with CLAS
• Exclusive ${\mathbf{\pi }}^0\mathbf{p}$ electroproduction off protons in the resonance region at photon virtualities 0.4~GeV${}^2$ $\le {\mathbf{Q}}^2\le 1$~GeV${}^2$
• N* Experiments and their Impact on Strong QCD Physics
• Covariant model for the Dalitz decay of the $N(1535)$ resonance
• Low-$Q^2$ empirical parametrizations of the $N^{\ast }$ helicity amplitudes
• Electroexcitation of nucleon resonances in a light-front relativistic quark model
• Helicity amplitudes of $N(1520)$ and $N(1535)$ including pentaquark components