Froggatt-Nielsen models from E8 in F-theory GUTs

Emilian Dudas, Eran Palti

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

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.

Original languageEnglish
Article number127
JournalJournal of High Energy Physics
Volume2010
Issue number1
DOIs
StatePublished - 1 Jan 2010
Externally publishedYes

Keywords

  • F-theory
  • GUT
  • Intersecting branes models
  • Quark masses and sm parameters

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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