Modulated bimaximal neutrino mixing

Abstract

The present article is an endeavor to look into some fruitful frameworks based on "Bi-maximal" neutrino mixing, from a model independent stand. The possibilities involving the correction or attenuation of the original BM mixing matrix, followed by GUT-inspired charged lepton correction are invoked. The "symmetry-basis" thus constructed, accentuates some interesting facets such as: a modified QLC relation, ${\theta }_{12}+{\theta }_c\approx \frac{\pi }{4}-{\theta }_{13}\cos (n\pi -{\delta }_{CP})$, a possible link up between neutrino and charged lepton sectors, ${\theta }_{13}^{\nu }={\theta }_{12}^l\sim \mathcal{O}({\theta }_C)$ or that between neutrinos and quarks, ${\theta }_{13}^{\nu }={\theta }_C$. The study vindicates the relevance of the Bi-maximal mixing as a first approximation.