Recent Neutrino Oscillation and Cross-Section Results from the T2K Experiment

TL;DR

The T2K experiment advances neutrino oscillation research by providing precise measurements, new cross-section data, and exploring charge-parity violation with upgraded detector capabilities.

Contribution

This paper reports the latest T2K oscillation results, including the first data with gadolinium-loaded detectors and several new cross-section measurements.

Findings

First data with gadolinium-loaded far detector

Multiple world-first measurements of rare interaction channels

Enhanced understanding of neutrino interaction modeling

Abstract

The T2K long-baseline neutrino oscillation experiment in Japan continues to lead the search for leptonic charge-parity violation while providing precision measurements of mixing and mass splitting parameters. Central to this programme is the mitigation of systematic uncertainties through the near detector complex, which provides high-statistics neutrino-nucleus interaction cross-section measurements across various targets. This contribution presents the latest T2K oscillation results, incorporating the first data with a gadolinium-loaded far detector, and highlights several recent cross-section measurements, including several world-first measurements of rare interaction channels. Together, these results demonstrate the vital synergy between interaction modelling and oscillation analysis in the search for charge-parity violation in the T2K-II era.