Leptonic Invariants, Neutrino Mass-Ordering and the Octant of ${\theta }_{23}$

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 ${\theta }_{23}$. 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.

arXiv comment10 pages, no figures

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Cited by in corpus (1)

• CP odd weak basis invariants in minimal see-saw model and Leptogenesis