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A4×SU(5)A4×SU(5) SUSY GUT of flavour in 8d

A4×SU(5)A4×SU(5) SUSY GUT of flavour in 8d
A4×SU(5)A4×SU(5) SUSY GUT of flavour in 8d
We propose an SU(5) SUSY GUT-Family model with A4 family symmetry in 8d where the vacuum alignment is achieved in an elegant way by the use of boundary conditions on orbifolds. The model involves SU(5) living in the 8d bulk, with matter living in 6d (or 4d) subspaces and Yukawa interactions occurring at a 4d point. The GUT group is broken to the Standard Model by the orbifold compactification, setting the GUT scale and leading to low energy supersymmetry and Higgs doublet–triplet splitting. The first two families of 10-plets are doubled resulting in a lack of both desirable and unwanted GUT relations. 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 in part by volume suppression and in part by a Froggatt–Nielsen mechanism.

0550-3213
107-121
Burrows, T.J.
77e4c607-c465-4092-9281-7b6cd93fd4cb
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Burrows, T.J.
77e4c607-c465-4092-9281-7b6cd93fd4cb
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538

Burrows, T.J. and King, S.F. (2011) A4×SU(5)A4×SU(5) SUSY GUT of flavour in 8d. Nuclear Physics B, 842 (1), 107-121. (doi:10.1016/j.nuclphysb.2010.08.018).

Record type: Article

Abstract

We propose an SU(5) SUSY GUT-Family model with A4 family symmetry in 8d where the vacuum alignment is achieved in an elegant way by the use of boundary conditions on orbifolds. The model involves SU(5) living in the 8d bulk, with matter living in 6d (or 4d) subspaces and Yukawa interactions occurring at a 4d point. The GUT group is broken to the Standard Model by the orbifold compactification, setting the GUT scale and leading to low energy supersymmetry and Higgs doublet–triplet splitting. The first two families of 10-plets are doubled resulting in a lack of both desirable and unwanted GUT relations. 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 in part by volume suppression and in part by a Froggatt–Nielsen mechanism.

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Published date: 2011

Identifiers

Local EPrints ID: 179033
URI: https://eprints.soton.ac.uk/id/eprint/179033
ISSN: 0550-3213
PURE UUID: f2571fb6-30d4-4da3-94d2-5ce55a7140bb

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Date deposited: 26 Apr 2011 10:05
Last modified: 18 Jul 2017 12:04

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