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A natural S4 × SO(10) model of flavour

A natural S4 × SO(10) model of flavour
A natural S4 × SO(10) model of flavour
We propose a natural $ S_4 \times SO(10) $ supersymmetric grand unified theory of flavour with an auxiliary $\mathbb{Z}_4^2 \times \mathbb{Z}_4^R$ symmetry, based on small Higgs representations (nothing larger than an adjoint) and hence a type-I seesaw mechanism. The Yukawa structure of all fermions is determined by the hierarchical vacuum expectation values of three $ S_4 $ triplet flavons, with CSD3 vacuum alignments, where up-type quarks and neutrinos couple to one Higgs $\mathbf{10}$, and the down-type quarks and charged leptons couple to a second Higgs $\mathbf{10}$. The Yukawa matrices are obtained from sums of low-rank matrices, where each matrix in the sum naturally accounts for the mass of a particular family, as in sequential dominance in the neutrino sector, which predicts a normal neutrino mass hierarchy. The model accurately fits all available quark and lepton data, with predictions for the leptonic $CP$ phase in 95$\%$ credible intervals given by $ 281^\circ
hep-ph
1029-8479
Bjorkeroth, Fredrik
afc5f145-d775-4f56-9207-95db839ec02d
Anda, Francisco J. de
dbb27610-c99c-4727-9158-5a2c155f61de
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Perdomo, Elena
c45c70c9-0c33-40bc-872b-1abff252788c
Bjorkeroth, Fredrik
afc5f145-d775-4f56-9207-95db839ec02d
Anda, Francisco J. de
dbb27610-c99c-4727-9158-5a2c155f61de
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Perdomo, Elena
c45c70c9-0c33-40bc-872b-1abff252788c

Bjorkeroth, Fredrik, Anda, Francisco J. de, King, Stephen F. and Perdomo, Elena (2017) A natural S4 × SO(10) model of flavour. Journal of High Energy Physics, 2017 (148). (doi:10.1007/JHEP10(2017)148).

Record type: Article

Abstract

We propose a natural $ S_4 \times SO(10) $ supersymmetric grand unified theory of flavour with an auxiliary $\mathbb{Z}_4^2 \times \mathbb{Z}_4^R$ symmetry, based on small Higgs representations (nothing larger than an adjoint) and hence a type-I seesaw mechanism. The Yukawa structure of all fermions is determined by the hierarchical vacuum expectation values of three $ S_4 $ triplet flavons, with CSD3 vacuum alignments, where up-type quarks and neutrinos couple to one Higgs $\mathbf{10}$, and the down-type quarks and charged leptons couple to a second Higgs $\mathbf{10}$. The Yukawa matrices are obtained from sums of low-rank matrices, where each matrix in the sum naturally accounts for the mass of a particular family, as in sequential dominance in the neutrino sector, which predicts a normal neutrino mass hierarchy. The model accurately fits all available quark and lepton data, with predictions for the leptonic $CP$ phase in 95$\%$ credible intervals given by $ 281^\circ

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Accepted/In Press date: 11 October 2017
e-pub ahead of print date: 20 October 2017
Published date: October 2017
Additional Information: 22 pages, 4 figures. Matches published version
Keywords: hep-ph

Identifiers

Local EPrints ID: 416368
URI: https://eprints.soton.ac.uk/id/eprint/416368
ISSN: 1029-8479
PURE UUID: dc3e9c17-5096-4daf-9150-348b316d1df9

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Date deposited: 14 Dec 2017 17:30
Last modified: 14 Aug 2019 17:10

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