3+2 neutrinos in a see-saw variation
High Energy Physics - Phenomenology
2012-08-27 v2
Abstract
If the sterile neutrino mass matrix in an otherwise conventional see-saw model has a rank less than the number of flavors, it is possible to produce pseudo-Dirac neutrinos. For the rank 1 case, 3+2 scenarios devolve naturally, as we show by example. Additionally, we find that the lower rank see-saw suppresses some mass differences, so that small mass differences do not require that the individual masses of each neutrino must also be small.
Cite
@article{arxiv.hep-ph/0307245,
title = {3+2 neutrinos in a see-saw variation},
author = {G. J. Stephenson, and T. Goldman and B. H. J. McKellar and M. Garbutt},
journal= {arXiv preprint arXiv:hep-ph/0307245},
year = {2012}
}
Comments
17pp., 1 fig., revtex4; typo corrected in Table