Electromagnetic structure of nucleon and Roper in soft-wall AdS/QCD

Abstract

We present an improved study of the electromagnetic form factors of the nucleon and of the Roper-nucleon transition using an extended version of the effective action of soft-wall AdS/QCD. We include novel contribution from additional non-minimal terms, which do not renormalize the charge and do not change the normalization of the corresponding form factors, but the inclusion of these terms results in an important contribution to the momentum dependence of the form factors and helicity amplitudes.

16 pages

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Cited by in corpus (23)

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• Proton structure from a light-front Hamiltonian
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• Electromagnetic Transition Form Factors of Baryon Resonances
• Electromagnetic properties of the nucleon and the Roper resonance in soft-wall AdS/QCD at finite temperature
• Nucleon resonances with higher spins in soft-wall AdS/QCD
• Gluon parton densities in soft-wall AdS/QCD
• Transition form factors and helicity amplitudes for electroexcitation of negative- and positive parity nucleon resonances in a light-front quark model
• 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${}^2$
• Melting of scalar hadrons in an AdS/QCD model modified by a thermal dilaton
• Scaling of PDFs, TMDs, and GPDs in soft-wall AdS/QCD
• $\gamma N\to N^{\ast }(1535)$ transition in soft-wall AdS/QCD
• Pomeron and Reggeon contributions to elastic proton-proton and proton-antiproton scattering in holographic QCD
• Low-$Q^2$ empirical parametrizations of the $N^{\ast }$ helicity amplitudes
• Exclusive and semiexclusive production of ${\mu }^{+}{\mu }^{-}$ pairs with $\Delta$ isobars and other resonances in the final state and the size of absorption effects
• Axial-vector form factor of nucleons at finite temperature from the AdS/QCD soft-wall model
• Holographic entanglement properties in the QCD phase diagram from EMD models
• Information entropy of nuclear electromagnetic transitions in AdS/QCD
• Elastic proton-neutron and antiproton-neutron scattering in holographic QCD
• Elastic pion-proton and pion-pion scattering via the holographic Pomeron and Reggeon exchange
• Electromagnetic transition form factors of nucleons from the hard-wall AdS/QCD model
• Bulk-to-boundary propagators with arbitrary total angular momentum $J$ in soft-wall AdS/QCD