Trimaximal lepton mixing with a trivial Dirac phase

Author(s)
Walter Grimus, Luis Lavoura, Andreas Singraber
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 µ–t interchange symmetry of the Lagrangian. Our model allows for leptogenesis even in the case of exact tri-bimaximal mixing.

Organisation(s)
Particle Physics
External organisation(s)
Universidade Técnica de Lisboa
Journal
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
686
Pages
141-145
No. of pages
5
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2010.02.032
Publication date
2010
Peer reviewed
Yes
Austrian Fields of Science 2012
103036 Theoretical physics
Portal url
https://ucrisportal.univie.ac.at/en/publications/trimaximal-lepton-mixing-with-a-trivial-dirac-phase(3a30fb39-25b0-4c92-990f-22fb90b537f1).html