Trimaximal lepton mixing with a trivial Dirac phase
High Energy Physics - Phenomenology
2010-04-21 v2
Abstract
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.
Keywords
Cite
@article{arxiv.0911.5120,
title = {Trimaximal lepton mixing with a trivial Dirac phase},
author = {W. Grimus and L. Lavoura and A. Singraber},
journal= {arXiv preprint arXiv:0911.5120},
year = {2010}
}
Comments
12 pages, no figures, some clarifications and one reference added, version for publication in Phys. Lett. B