Froggatt-Nielsen models from E8 in F-theory GUTs
High Energy Physics - Theory
2015-03-13 v3 High Energy Physics - Phenomenology
Abstract
This paper studies F-theory SU(5) GUT models where the three generations of the standard model come from three different curves. All the matter is taken to come from curves intersecting at a point of enhanced E8 gauge symmetry. Giving a vev to some of the GUT singlets naturally implements a Froggatt-Nielsen approach to flavour structure. A scan is performed over all possible models and the results are filtered using phenomenological constraints. We find a unique model that fits observations of quark and lepton masses and mixing well. This model suffers from two drawbacks: R-parity must be imposed by hand and there is a doublet-triplet splitting problem.
Keywords
Cite
@article{arxiv.0912.0853,
title = {Froggatt-Nielsen models from E8 in F-theory GUTs},
author = {Emilian Dudas and Eran Palti},
journal= {arXiv preprint arXiv:0912.0853},
year = {2015}
}
Comments
42 pages; v2:journal version; v3:corrected typo in neutrino masses