Implications of δlCP~270° and θ23≳45∘ for Texture Specific Lepton Mass Matrices and 0νββ Decay

Abstract EN

We study the phenomenological consequences of recent results from atmospheric and accelerator neutrino experiments, favoring normal neutrino mass ordering m1

It is observed that deviations from parallel texture structures for Ml and Mν are essential for realizing such structures.

In particular, such hierarchical neutrino mass matrices are not supportive for a vanishing neutrino mass mν1→0 characterized by Det Mν≠0 and predict mν1≃(0.1–8.0) meV, mν2≃(8.0–13.0) meV, mν3≃(47.0–52.0) meV, Σ≃(56.0–71.0) meV, and 〈mee〉≃(0.01–10.0) meV, respectively, indicating that the task of observing a 0νββ decay may be rather challenging for near future experiments.