Precision Measurements of the PMNS Parameters with T2K Data

TL;DR

This paper reports on precise measurements of neutrino oscillation parameters using T2K data, discussing current results, systematic uncertainties, and future strategies to enhance measurement accuracy.

Contribution

It provides the latest measurements of PMNS parameters in disappearance mode and analyzes the main systematic uncertainties affecting precision.

Findings

Measurement of $ heta_{23}$ and $ m extstyle riangle m^2_{32}$ with T2K data

Identification of dominant systematic uncertainties

Discussion of future improvements in measurement precision

Abstract

T2K is a long baseline neutrino experiment which exploits a neutrino and antineutrino beam at JPARC to perform precision measurements of neutrino oscillation parameters $\Delta {\rm m}^2_{\rm 32}$, $\sin^2 \theta_{23}$ (besides the CP-violating phase $\delta_{\rm CP}$). The latest results for the measurement of PMNS parameters in the disappearance mode are presented here, highlighting the main systematic uncertainties limiting the precision. The future strategy to improve the precision on the measurement of PMNS parameters are also discussed.