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Flavour-symmetric type-II Dirac neutrino seesaw mechanism
oleh: Cesar Bonilla, J.M. Lamprea, Eduardo Peinado, Jose W.F. Valle
| Format: | Article |
|---|---|
| Diterbitkan: | Elsevier 2018-04-01 |
Deskripsi
We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the “golden” flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixing angle. Using the latest neutrino oscillation global fit [1] we derive restrictions on the oscillation parameters, such as a correlation between δCP and mνlightest. Keywords: Neutrino masses and mixing, Flavour physics