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

TL;DR

This paper models the nucleon to Delta transition form factors using AdS/QCD and light-front quark-diquark models, analyzing their impact on transition charge densities and comparing predictions with experimental data.

Contribution

It introduces a combined AdS/QCD and light-front quark-diquark approach to compute transition form factors and charge densities, providing new insights into nucleon to Delta excitations.

Findings

AdS/QCD predictions align well with experimental data.

Transition charge densities are characterized for polarized and unpolarized cases.

The models offer a consistent description of nucleon to Delta transitions.

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.