Long-Baseline Neutrino Experiments

TL;DR

This paper reviews long-baseline neutrino experiments, highlighting their role in understanding neutrino oscillations, masses, and mixing, and discusses the evolution of experimental techniques and future research directions.

Contribution

It provides a comprehensive overview of the development, current status, and future goals of long-baseline neutrino experiments, emphasizing experimental advancements.

Findings

Neutrinos oscillate among flavor states over long distances.

Current data constrains neutrino mass differences and mixing angles.

Future experiments aim to resolve remaining open questions in neutrino physics.

Abstract

We review long-baseline neutrino experiments in which neutrinos are detected after traversing macroscopic distances. Over such distances neutrinos have been found to oscillate among flavor states. Experiments with solar, atmospheric, reactor, and accelerator neutrinos have resulted in a coherent picture of neutrino masses and mixing of the three known flavor states. We will summarize the current best knowledge of neutrino parameters and phenomenology with our focus on the evolution of the experimental technique. We proceed from the first evidence produced by astrophysical neutrino sources to the current open questions and the goals of future research.