SU(6) gauge-Higgs grand unification: minimal viable models and flavor

Abstract Gauge-Higgs grand unification theories are models of gauge-Higgs unification that extend the electroweak group into a simple group that includes the color symmetry. The minimal option is a gauge-Higgs grand unification based on the SU(6) gauge group, mirroring SU(5) grand unification in 4D...

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Main Authors: Andrei Angelescu, Andreas Bally, Florian Goertz, Sascha Weber
Format: Article
Language:English
Published: SpringerOpen 2023-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2023)012
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author Andrei Angelescu
Andreas Bally
Florian Goertz
Sascha Weber
author_facet Andrei Angelescu
Andreas Bally
Florian Goertz
Sascha Weber
author_sort Andrei Angelescu
collection DOAJ
description Abstract Gauge-Higgs grand unification theories are models of gauge-Higgs unification that extend the electroweak group into a simple group that includes the color symmetry. The minimal option is a gauge-Higgs grand unification based on the SU(6) gauge group, mirroring SU(5) grand unification in 4D while providing a solution to the hierarchy problem. We explore different minimal and realistic novel incarnations of SU(6) gauge-Higgs grand unification. We submit the setup to the various flavor hierarchies observed in nature and, utilizing the power of the fifth dimension, identify an embedding that provides a compelling model of quarks and leptons that naturally explains the mass hierarchies and the CKM/PMNS structure. We perform a detailed study of quark- and lepton-flavor constraints (which are intimately related due to the GUT nature) together with an analysis of the Higgs potential which arises at the loop level. Electroweak precision constraints on the model are discussed and the rich scalar sector is analyzed. Future flavor constraints from upcoming experiments will provide a stringent test for this class of models, while a scalar singlet and leptoquark provide unique targets for current and future collider experiments to probe this solution to various open questions in nature.
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spelling doaj.art-73aef19dc32340de9487ae3383f6e3e22023-07-30T11:04:10ZengSpringerOpenJournal of High Energy Physics1029-84792023-04-012023416610.1007/JHEP04(2023)012SU(6) gauge-Higgs grand unification: minimal viable models and flavorAndrei Angelescu0Andreas Bally1Florian Goertz2Sascha Weber3Max-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikAbstract Gauge-Higgs grand unification theories are models of gauge-Higgs unification that extend the electroweak group into a simple group that includes the color symmetry. The minimal option is a gauge-Higgs grand unification based on the SU(6) gauge group, mirroring SU(5) grand unification in 4D while providing a solution to the hierarchy problem. We explore different minimal and realistic novel incarnations of SU(6) gauge-Higgs grand unification. We submit the setup to the various flavor hierarchies observed in nature and, utilizing the power of the fifth dimension, identify an embedding that provides a compelling model of quarks and leptons that naturally explains the mass hierarchies and the CKM/PMNS structure. We perform a detailed study of quark- and lepton-flavor constraints (which are intimately related due to the GUT nature) together with an analysis of the Higgs potential which arises at the loop level. Electroweak precision constraints on the model are discussed and the rich scalar sector is analyzed. Future flavor constraints from upcoming experiments will provide a stringent test for this class of models, while a scalar singlet and leptoquark provide unique targets for current and future collider experiments to probe this solution to various open questions in nature.https://doi.org/10.1007/JHEP04(2023)012Extra DimensionsTheories of FlavourGrand UnificationCompositeness
spellingShingle Andrei Angelescu
Andreas Bally
Florian Goertz
Sascha Weber
SU(6) gauge-Higgs grand unification: minimal viable models and flavor
Journal of High Energy Physics
Extra Dimensions
Theories of Flavour
Grand Unification
Compositeness
title SU(6) gauge-Higgs grand unification: minimal viable models and flavor
title_full SU(6) gauge-Higgs grand unification: minimal viable models and flavor
title_fullStr SU(6) gauge-Higgs grand unification: minimal viable models and flavor
title_full_unstemmed SU(6) gauge-Higgs grand unification: minimal viable models and flavor
title_short SU(6) gauge-Higgs grand unification: minimal viable models and flavor
title_sort su 6 gauge higgs grand unification minimal viable models and flavor
topic Extra Dimensions
Theories of Flavour
Grand Unification
Compositeness
url https://doi.org/10.1007/JHEP04(2023)012
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AT andreasbally su6gaugehiggsgrandunificationminimalviablemodelsandflavor
AT floriangoertz su6gaugehiggsgrandunificationminimalviablemodelsandflavor
AT saschaweber su6gaugehiggsgrandunificationminimalviablemodelsandflavor