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GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets

GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets
GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets
We propose new predictions from grand unified theories (GUTs) [applicable to both supersymmetric (SUSY) and non-SUSY models] for the ratios of quark and lepton Yukawa couplings. These new predictions arise from splitting the masses of the messenger fields for the GUT-scale Yukawa operators by Clebsch-Gordan factors from GUT symmetry breaking. This has the effect that these factors enter inversely in the predicted quark-lepton Yukawa coupling ratios, leading to new possible GUT predictions. We systematically construct the new predictions that can be realized in this way in SU(5) GUTs and Pati-Salam unified theories and discuss model building applications.
1550-7998
1-10
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Spinrath, Martin
5d3865c2-f012-4f91-aec0-2eda6117e161
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Spinrath, Martin
5d3865c2-f012-4f91-aec0-2eda6117e161

Antusch, Stefan, King, Stephen F. and Spinrath, Martin (2014) GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets. Physical Review D, 89 (5), 1-10. (doi:10.1103/PhysRevD.89.055027).

Record type: Article

Abstract

We propose new predictions from grand unified theories (GUTs) [applicable to both supersymmetric (SUSY) and non-SUSY models] for the ratios of quark and lepton Yukawa couplings. These new predictions arise from splitting the masses of the messenger fields for the GUT-scale Yukawa operators by Clebsch-Gordan factors from GUT symmetry breaking. This has the effect that these factors enter inversely in the predicted quark-lepton Yukawa coupling ratios, leading to new possible GUT predictions. We systematically construct the new predictions that can be realized in this way in SU(5) GUTs and Pati-Salam unified theories and discuss model building applications.

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PhysRevD.89.055027 - Version of Record
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Published date: 2014
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 369410
URI: http://eprints.soton.ac.uk/id/eprint/369410
ISSN: 1550-7998
PURE UUID: 963c8ee2-b06a-4d55-a8b3-dee8056eae5b

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Date deposited: 25 Sep 2014 13:46
Last modified: 23 Sep 2019 18:47

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