The current status of neutrino mixing

TL;DR

This paper reviews the current experimental understanding of neutrino mixing, highlighting established models, measured parameters, and open questions like the unknown mixing angle and CP violation, pointing to future research directions.

Contribution

It provides a comprehensive summary of the experimental status of neutrino oscillations, emphasizing recent progress and remaining uncertainties in the field.

Findings

Neutrino oscillation models are well-established with high confidence.

Many parameters are measured with a few percent accuracy.

Some key parameters like $ heta_{13}$ and CP violation remain unknown.

Abstract

A brief review of the experimental status of neutrino mixing. The model of neutrino oscillations has now been established with high confidence, with many of the model parameters measured to an accuracy of a few per cent. However, some parameters still remain unknown, notably the mixing angle $\theta_{13}$ and the amount of CP violation. Recently, new questions have come to light, highlighting possibilities to search for new physics in the neutrino sector.