On the polarization of the final nucleon in NC elastic \nu_\mu (\bar\nu_\mu) - N scattering

TL;DR

This paper calculates the polarization of the final nucleon in neutral current elastic neutrino-nucleon scattering, exploring its sensitivity to axial and strange axial form factors, which could provide new insights into nucleon structure.

Contribution

It introduces a detailed calculation of nucleon polarization in NC elastic neutrino scattering and analyzes its sensitivity to axial and strange axial form factors.

Findings

Polarization is sensitive to axial form factors.

Measurement could reveal new information about nucleon structure.

Numerical analysis shows dependence on form factor choices.

Abstract

New short baseline neutrino experiments open new possibilities of high precision study of different neutrino processes. We present here results of the calculation of the polarization of final nucleon in elastic NC \nu_\mu (\bar\nu_\mu)-nucleon scattering. In a numerical analysis the sensitivity to the different choices of the axial and axial strange form factors is examined. Measurements of the polarization of the final proton in elastic e-p scattering drastically changed our knowledge about the electromagnetic form factors of the proton. From measurement of the nucleon polarization in the NC elastic scattering a new additional information about the axial G_A(Q^2} and the strange axial G^s_A(Q^2) form factors of the nucleon could be inferred.