Axial form factor of the nucleon at large momentum transfers

TL;DR

This paper estimates the nucleon axial form factor at high momentum transfers using light-cone sum rules, aiding future experimental studies at Jefferson Laboratory.

Contribution

It provides the first estimate of the nucleon axial form factor at large virtualities using next-to-leading order light-cone sum rules.

Findings

Estimate of the axial form factor in the $Q^2=1-10$ GeV$^2$ range

Application of next-to-leading order light-cone sum rules

Supports experimental efforts at Jefferson Laboratory

Abstract

Motivated by the emerging possibilities to study threshold pion electroproduction at large momentum transfers at Jefferson Laboratory following the 12 GeV upgrade, we provide a short theory summary and an estimate of the nucleon axial form factor for large virtualities in the $Q^2 = 1-10~\text{GeV}^2$ range using next-to-leading order light-cone sum rules.