Hexagonal theory of flavor

Christopher D. Carone, Richard F. Lebed

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We construct a supersymmetric theory of flavor based on the discrete gauge group (Formula presented) where (Formula presented) describes the symmetry of a regular hexagon under proper rotations in three dimensions. The representation structure of the group allows one to distinguish the third from the lighter two generations of matter fields, so that in the symmetry limit only the top quark Yukawa coupling is allowed and scalar superpartners of the first two generations are degenerate. Light fermion Yukawa couplings arise from a sequential breaking of the flavor symmetry, and supersymmetric flavor-changing processes remain adequately suppressed. We contrast our model with others based on non-Abelian discrete gauge symmetries described in the literature and discuss the challenges in constructing more minimal flavor models based on this approach.

Original languageEnglish (US)
Article number096002
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume60
Issue number9
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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