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A4 Family Symmetry from SU(5) SUSY GUTs in 6d

Nuclear Physics B, ISSN: 0550-3213, Vol: 835, Issue: 1, Page: 174-196
2010
  • 68
    Citations
  • 0
    Usage
  • 5
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    68
    • Citation Indexes
      68
  • Captures
    5

Article Description

We propose a model in which A4 Family Symmetry arises dynamically from a six-dimensional orbifold SU(5) Supersymmetric Grand Unified Theory. The SU(5) is broken to the Standard Model gauge group by a particular orbifold compactification leading to A4 Family Symmetry, low energy Supersymmetry and Higgs doublet–triplet splitting. The resulting four-dimensional effective superpotential leads to a realistic description of quark and lepton masses and mixing angles including tri-bimaximal neutrino mixing and an inter-family mass hierarchy provided by a Froggatt–Nielsen mechanism. This model is the first which combines the idea of orbifold GUTs with A4 Family Symmetry resulting from the orbifolding.

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