$C_5^A$ form factor from ANL experiment

TL;DR

This paper extracts the $C_5^A(Q^2)$ axial form factor from ANL neutrino-deuteron scattering data, accounting for deuteron effects, and provides best-fit parameters assuming a dipole form.

Contribution

It presents a new extraction of the $C_5^A(Q^2)$ form factor from experimental data with deuteron effects included, offering updated parameters for theoretical models.

Findings

Best fit $C_5^A(0)=1.13\u00b10.15$

Mass parameter $M_A=0.94\u00b10.08$ GeV

Form factor consistent with dipole parametrization

Abstract

$C_5^A(Q^2)$ axial form factor is extracted from the ANL neutrino-deuteron scattering data with deuteron structure effects taken into consideration. The best fit of the $C_5^A(Q^2)$ axial form factor is obtained assuming dipole parametrization with $C_5^A(0)=1.13\pm0.15$ and $M_A=0.94\pm 0.08$ GeV.