Precise predictions for Dirac neutrino mixing

TL;DR

This paper investigates the evolution of Dirac neutrino mixing parameters using a new parametrization, providing precise predictions for certain angles and testing hypotheses against experimental data.

Contribution

It introduces a novel parametrization for neutrino mixing angles and analyzes their evolution, offering precise predictions and testing the high-scale mixing unification hypothesis.

Findings

Precise predictions for the neutrino mixing angle θ23.

High scale mixing unification hypothesis is incompatible with Dirac neutrinos.

Correlations among neutrino mixing and CP violation observables are established.

Abstract

The neutrino mixing parameters are thoroughly studied using renormalization-group evolution of Dirac neutrinos with recently proposed parametrization of the neutrino mixing angles referred as `high-scale mixing relations'. The correlations among all neutrino mixing and $CP$ violating observables are investigated. The predictions for the neutrino mixing angle $\theta_{23}$ are precise, and could be easily tested by ongoing and future experiments. We observe that the high scale mixing unification hypothesis is incompatible with Dirac neutrinos due to updated experimental data.