# CP Symmetries as Guiding Posts: revamping tri-bi-maximal Mixing. Part II

## TL;DR

This paper explores generalized CP symmetries to refine the tri-bi-maximal neutrino mixing model, making it compatible with current experiments and discussing implications for future neutrino research.

## Contribution

It systematically revamps the TBM mixing pattern using generalized CP symmetries, aligning it with experimental data and exploring phenomenological consequences.

## Key findings

- Generalized CP symmetries compatible with TBM are identified.
- Revamped models are consistent with current neutrino oscillation data.
- Implications for neutrinoless double beta decay are discussed.

## Abstract

In this follow up of arXiv:1812.04663 we analyze the generalized CP symmetries of the charged lepton mass matrix compatible with the complex version of the Tri-Bi-Maximal (TBM) lepton mixing pattern. These symmetries are used to `revamp' the simplest TBM \textit{Ansatz} in a systematic way. Our generalized patterns share some of the attractive features of the original TBM matrix and are consistent with current oscillation experiments. We also discuss their phenomenological implications both for upcoming neutrino oscillation and neutrinoless double beta decay experiments.