Electromagnetic Form Factors of Hadrons in Dual-Large $N_c$ QCD

TL;DR

This paper presents a study of hadron electromagnetic form factors using Dual-Large N_c QCD, which enhances traditional models by including an infinite spectrum of resonances to better match experimental data.

Contribution

It introduces a dual-resonance model within large N_c QCD to improve the accuracy of electromagnetic form factor predictions for hadrons.

Findings

Enhanced agreement with experimental data for pion, proton, and Δ(1236) form factors.

Incorporation of infinite zero-width resonances improves traditional VMD results.

Framework provides a more comprehensive description of hadron structure.

Abstract

In this talk, results are presented of determinations of electromagnetic form factors of hadrons (pion, proton, and $\Delta(1236)$) in the framework of Dual-Large $N_c$ QCD (Dual-$QCD_\infty$). This framework improves considerably tree-level VMD results by incorporating an infinite number of zero-width resonances, with masses and couplings fixed by the dual-resonance (Veneziano-type) model.