# Flavor analysis of nucleon, $\Delta$, and hyperon electromagnetic form factors

## TL;DR

This paper analyzes nucleon, $$, and hyperon electromagnetic form factors through experimental data and tests a relativistic quark model, finding good agreement up to moderate momentum transfers and comparing results with lattice QCD.

## Contribution

It evaluates the flavor structure of baryons using a relativistic quark model and experimental data, extending analysis to $$ and hyperons and comparing with lattice QCD results.

## Key findings

- Good agreement between model and experiment up to $Q^2 \,\sim\, 4$ GeV$^2$
- Model explains flavor content with three-quark configurations
- Sample results for $$ and hyperons align with lattice QCD data

## Abstract

By the analysis of the world data base of elastic electron scattering on the proton and the neutron (for the latter, in fact, on $^2H$ and $^3He$) important experimental insights have recently been gained into the flavor compositions of nucleon electromagnetic form factors. We report on testing the Graz Goldstone-boson-exchange relativistic constituent-quark model in comparison to the flavor contents in low-energy nucleons, as revealed from electron-scattering phenomenology. It is found that a satisfactory agreement is achieved between theory and experiment for momentum transfers up to $Q^2\sim$ 4 GeV$^2$, relying on three-quark configurations only. Analogous studies have been extended to the $\Delta$ and the hyperon electromagnetic form factors. For them we here show only some sample results in comparison to data from lattice quantum chromodynamics.