Isovector axial vector and pseudoscalar transition form factors of $\Delta $ in QCD

TL;DR

This paper calculates the isovector axial vector and pseudoscalar transition form factors of the Δ baryon using light-cone QCD sum rules, comparing results with lattice QCD, chiral perturbation theory, and quark models.

Contribution

It provides new calculations of Δ baryon form factors using light-cone QCD sum rules and compares them with other theoretical approaches.

Findings

Form factors fit well with exponential form

Results are consistent with lattice QCD and chiral perturbation theory

Provides insights into Δ baryon structure

Abstract

We investigate the isovector axial vector and pseudoscalar form factors of $\Delta$ baryon by employing light-cone QCD sum rules. Numerical calculations show that the form factors can be well fitted by the exponential form. We make a comparison with the predictions of Lattice QCD, Chiral Perturbation Theory and Quark Model.