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arXiv · 1705.07758

Leptonic Invariants, Neutrino Mass-Ordering and the Octant of $θ_{23}$

G. C. Branco·M. N. Rebelo·J. I. Silva-Marcos
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Abstract

We point out that leptonic weak-basis invariants are an important tool for the study of the properties of lepton flavour models. In particular, we show that appropriately chosen invariants can give a clear indication of whether a particular lepton flavour model favours normal or inverted hierarchy for neutrino masses and what is the octant of $θ_{23}$. These invariants can be evaluated in any conveniently chosen weak-basis and can also be expressed in terms of neutrino masses, charged lepton masses, mixing angles and CP violation phases.

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G. C. Branco, M. N. Rebelo, J. I. Silva-Marcos. 2017-05-22. Leptonic Invariants, Neutrino Mass-Ordering and the Octant of $θ_{23}$. https://doi.org/10.1007/jhep11(2017)001

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