Bi-maximal Neutrino Mixing Pattern Reexamined

TL;DR

This paper revisits the bi-maximal neutrino mixing pattern, proposing a simple extension that incorporates small couplings and large CP violation, aligning with key solar neutrino solutions.

Contribution

It introduces a minimal extension to the bi-maximal mixing model, enabling compatibility with solar neutrino observations and CP violation effects.

Findings

Compatible with vacuum and large-angle MSW solar solutions

Allows large CP violation in neutrino oscillations

Provides a more flexible neutrino mixing framework

Abstract

I propose a simple extension of the bi-maximal neutrino mixing pattern, allowing slight coupling between solar and atmospheric neutrino oscillations as well as large CP violation. The new scenario is compatible with either the vacuum oscillation solution or the large-angle MSW solution to the solar neutrino