Affiliation:
1. Chitkara University, Barotiwala, Himachal Pradesh 174103, India
Abstract
We study the phenomenological consequences of recent results from atmospheric and accelerator neutrino experiments, favoring normal neutrino mass ordering m1<m2<m3, a near maximal lepton Dirac CP phase δl~270∘ along with θ23≳45∘, for possible realization of natural structure in the lepton mass matrices characterized by (Mij)~O(mimj) for i,j=1,2,3. 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.
Funder
Department of Science and Technology under SERB Research
Subject
Nuclear and High Energy Physics
Cited by
4 articles.
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