Neutrino Mixing Angles in Sequential Dominance to NLO and NNLO

Understand

Neutrinos with hierarchical masses and two large mixing angles may naturally originate from sequential dominance (SD).

• Within this framework we present analytic expressions for the neutrino mixing angles including the next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) corrections arising from the second lightest and lightest neutrino masses.
• The analytic results for neutrino mixing angles in SD presented here, including the NLO and NNLO corrections, are applicable to a wide class of models and may provide useful insights when confronting the models with data from high precision neutrino experiments.
• We also point out that for special cases of SD corresponding to form dominance (FD) the NLO and NNLO corrections both vanish.