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Exceptional supersymmetric standard models with non-abelian discrete family symmetry

Howl, R. and King, S.F. (2008) Exceptional supersymmetric standard models with non-abelian discrete family symmetry Journal of High Energy Physics, 2008, (5), 008-[18pp]. (doi:10.1088/1126-6708/2008/05/008).

Record type: Article

Abstract

We introduce a non-Abelian discrete ?27 family symmetry into the recently proposed classes of Exceptional Supersymmetric Standard Model (E6SSM) based on a broken E6 Grand Unified Theory (GUT) in order to solve the flavour problem in these models and in particular to account for tri-bimaximal neutrino mixing. We consider both the minimal version of the model (the ME6SSM) with gauge coupling unification at the string scale and the E6SSM broken via the Pati-Salam chain with gauge coupling unification at the conventional GUT scale. In both models there are low energy exotic colour triplets with couplings suppressed by the symmetries of the model, including the family symmetry. This leads to suppressed proton decay and long lived TeV mass colour triplet states with striking signatures at the LHC.

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More information

Published date: May 2008
Keywords: beyond standard model, quark masses and sm parameters, neutrino physics, gut
Organisations: High Energy Physics

Identifiers

Local EPrints ID: 144083
URI: http://eprints.soton.ac.uk/id/eprint/144083
PURE UUID: 6fe096c2-b35e-49c8-9c53-f980b86f41f7

Catalogue record

Date deposited: 26 Apr 2011 12:48
Last modified: 18 Jul 2017 23:08

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Contributors

Author: R. Howl
Author: S.F. King

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