Axial and pseudoscalar form-factors of the Delta^+(1232)

TL;DR

This paper reports initial lattice QCD results on the axial and pseudoscalar form factors of the Delta^+(1232), comparing quenched and hybrid fermion actions to understand their properties.

Contribution

It provides the first lattice QCD analysis of Delta^+ form factors using both quenched and hybrid fermion formulations, highlighting methodological approaches.

Findings

Small statistical errors in quenched approximation

Comparison between quenched and hybrid action results

Initial insights into Delta^+ axial and pseudoscalar form factors

Abstract

We present first results on the axial and pseudoscalar $\Delta$ form factors. The analysis is carried out in the quenched approximation where statistical errors are small and the lattice set-up can be investigated relatively quickly. We also present an analysis with a hybrid action using staggered sea quarks and domain-wall valence fermions.