Neutral current neutrino and antineutrino scattering off the polarized nucleon

TL;DR

This paper investigates how spin asymmetry measurements in neutral current neutrino and antineutrino scattering off polarized nucleons can differentiate processes and enhance understanding of pion production mechanisms.

Contribution

It introduces the use of spin asymmetries as a tool to distinguish neutrino from antineutrino scattering and to study pion production mechanisms.

Findings

Spin asymmetries can differentiate neutrino and antineutrino processes.

Spin asymmetries encode information about target properties.

Studying inelastic spin asymmetries improves understanding of pion production.

Abstract

The elastic and inelastic neutral current $\nu$ ($\overline{\nu}$) scattering off the polarized nucleon is discussed. The inelastic scattering concerns the single-pion production process. We show that the spin asymmetries' measurement can help to distinguish between neutrino and antineutrino neutral current scattering processes. The spin asymmetries also encode information about a type of target. Eventually, detailed studies of the inelastic spin asymmetries can improve understanding of the resonant-nonresonant pion production mechanism.