Neutrino Physics Without Oscillations

TL;DR

This paper explores the potential of neutrino physics to reveal new insights about strongly interacting systems, focusing on sum rules for nucleon spin structure and discussing deviations in electroweak measurements.

Contribution

It introduces a rigorous sum rule for nucleon spin structure functions and comments on the implications of the NuTeV anomaly for neutrino physics.

Findings

Existence of a sum rule for proton and neutron spin structure functions.

Discussion of the NuTeV anomaly and its significance.

Potential for neutrinos to provide new information about strongly interacting systems.

Abstract

There is a tremendous potential for neutrinos to yield valuable new information about strongly interacting systems. Here we provide a taste of this potential, beginning with the existence of a rigorous sum rule for the proton and neutron spin structure functions based on the measurement of the flavor singlet axial charge of the nucleon. We also comment on the NuTeV report of a 3$\sigma$ deviation of the value of $\sin^2 \theta_W$ measured in neutrino (and anti-neutrino) scattering from that expected within the Standard Model.