Trimaximal lepton mixing with a trivial Dirac phase

Details Trimaximal lepton mixing with a trivial Dirac phase Trimaximal lepton mixing with a trivial Dirac phase

2009-11-27

arxiv.org/abs/0911.5120v2

Phys.Lett.B686:141-145,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, no figures, some clarifications and one reference added, version for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2010.02.032

We present a model which employs the seesaw mechanism with five right-handed neutrinos, leading to trimaximal and CP-conserving lepton mixing. Tri-bimaximal mixing is a natural limiting case of our model which occurs when one particular vacuum expectation value is real and preserves the mu-tau interchange symmetry of the Lagrangian. Our model allows for leptogenesis even in the case of exact tri-bimaximal mixing.

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