Nucleon to $\Delta$ transition form factors and empirical transverse charge densities

Abstract

We investigate the nucleon to $\Delta$ transition form factors in a soft-wall AdS/QCD model and a light-front quark-diquark model inspired by AdS/QCD. From the transition form factors we evaluate the transition charge densities which influences the nucleon to $\Delta$ excitation. Here we consider both the unpolarized and the transversely polarized cases. The AdS/QCD predictions are compared with available experimental data and with the results of the global parameterization, MAID2007.

9 pages, 5 figures; minor text modified, version to appear in Eur. Phys. J. A

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• Exploring Baryon Resonances with Transition Generalized Parton Distributions: Status and Perspectives
• Nucleon to $\Delta$ transition form factors and empirical transverse charge densities
• Transverse densities and generalized parton distributions of $\rho$ meson in light front quark model
• Two-dimensional charge distributions of the $\Delta$ baryon: Interpolation between the nonrelativistic and ultrarelativistic limit