Overview of the T2K long baseline neutrino oscillation experiment

TL;DR

The T2K experiment investigates neutrino oscillations, especially focusing on measuring the small mixing angle θ13 using a long baseline setup with a neutrino beam from J-PARC and the Super-Kamiokande detector.

Contribution

This paper provides an overview of the T2K long baseline neutrino oscillation experiment and its approach to measuring θ13.

Findings

Neutrino oscillations confirmed by multiple experiments.

T2K aims to measure the small mixing angle θ13.

Use of intense neutrino beam and large detector setup.

Abstract

Neutrino oscillations were discovered by atmospheric and solar neutrino experiments, and have been confirmed by experiments using neutrinos from accelerators and nuclear reactors. It has been found that there are large mixing angles in the $\nu_e \to \nu_\mu$ and $\nu_\mu \to \nu_\tau$ oscillations. The third mixing angle $\theta_{13}$, which parameterizes the mixing between the first and the third generation, is constrainted to be small by the CHOOZ experiment result. The T2K experiment is a long baseline neutrino oscillation experiment that uses intense neutrino beam produced at J-PARC and Super-Kamiokande detector at 295 km as the far detector to measure $\theta_{13}$ using $\nu_e$ appearance. In this talk, we will give an overview of the experiment.