Dissecting nucleon transition electromagnetic form factors

Abstract

In Poincaré-covariant continuum treatments of the three valence-quark bound-state problem, the force behind dynamical chiral symmetry breaking also generates nonpointlike, interacting diquark correlations in the nucleon and its resonances. We detail the impact of these correlations on the electromagnetically-induced nucleon-$\Delta$ and nucleon-Roper transitions, providing a flavour-separation of the latter and associated predictions that can be tested at modern facilities.

6 pages, 7 figures

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Cited by in corpus (28)

• Diquark Correlations in Hadron Physics: Origin, Impact and Evidence
• Spectrum of light- and heavy-baryons
• Empirical Consequences of Emergent Mass
• Nucleon-to-Roper electromagnetic transition form factors at large-$Q^2$
• Structure of the nucleon's low-lying excitations
• Strong QCD Insights from Excited Nucleon Structure Studies with CLAS and CLAS12
• Nucleon elastic form factors at accessible large spacelike momenta
• Parton distribution amplitudes: revealing diquarks in the proton and Roper resonance
• Proton tensor charges from a Poincaré-covariant Faddeev equation
• Electromagnetic Transition Form Factors of Baryon Resonances
• Nucleon axial-vector and pseudoscalar form factors, and PCAC relations
• Transition form factors: ${\gamma }^{\ast }+p\to \Delta (1232)$, $\Delta (1600)$
• Photo- and Electrocouplings of Nucleon Resonances
• Dynamical diquarks in the ${\mathbf{\gamma }}^{(\ast )}\mathbf{p}\to \mathbf{N}(1535){\frac{1}{2}}^{-}$ transition
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• Electromagnetic transition form factors of baryons in the space-like momentum region
• On the effect of resonances in the quark-photon vertex
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• Low-$Q^2$ empirical parametrizations of the $N^{\ast }$ helicity amplitudes
• Role of chiral symmetry in the nucleon excitation spectrum
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• Nucleon viewed as a Borromean Bound-State
• Nucleon-to-Resonance Form Factors at Large Photon Virtualities
• Valence-quark structure N* resonances from DSEs
• Excited light baryons from quark-gluon-level calculations
• Quark-photon vertex from lattice QCD in Landau gauge
• Flavour decomposition of electromagnetic transition form factors of nucleon resonances