Recent Results from Long-Baseline Neutrino Experiments

TL;DR

This paper reviews recent advances in long-baseline neutrino experiments, highlighting observed neutrino flavor changes and the move towards precision 3-flavor mixing measurements using accelerator-based beams.

Contribution

It summarizes recent experimental results and introduces new long-baseline experiments, emphasizing the transition to precision neutrino oscillation studies.

Findings

Observation of muon neutrino disappearance

Detection of electron and tau neutrino appearance

Introduction of new long-baseline experiments

Abstract

We are moving into an era of precision measurements of neutrino mixing, and it is increasingly necessary to use a 3-flavor framework to describe the results. This paper will focus on recent results from long-baseline neutrino experiments, especially accelerator-based beams. Using $\nu_{\mu}$ beams, we have now observed the disappearance of $\nu_{\mu}$, and the appearance of both $\nu_{e}$ and $\nu_{\tau}$. It will also briefly describe some of the long-baseline experiments that have recently started operation, from which data are expected soon.