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3HDM with ∆(27) symmetry and its phenomenological consequences

We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global ∆(27) discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group. For each of the known tree-level minima we stud...

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Detalles Bibliográficos
Autores principales: Kalinowski, J., Kotlarski, W., Rebelo, M.N., de Medeiros Varzielas, I.
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP02(2023)231
http://cds.cern.ch/record/2798736
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author Kalinowski, J.
Kotlarski, W.
Rebelo, M.N.
de Medeiros Varzielas, I.
author_facet Kalinowski, J.
Kotlarski, W.
Rebelo, M.N.
de Medeiros Varzielas, I.
author_sort Kalinowski, J.
collection CERN
description We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global ∆(27) discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group. For each of the known tree-level minima we study the mass spectra and use the oblique parameters STU as well as perturbative unitarity to constrain the parameter space of the model. We then discuss phenomenological consequences of some leading order flavour mixing quark Yukawa couplings by considering the flavour violation process b → sγ.We show that perturbative unitarity significantly constrains parameters of the model while, conversely, the beyond the Standard Model contributions to the b → sγ decay are automatically tamed by the symmetry.
id cern-2798736
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
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spelling cern-27987362023-04-30T03:17:10Zdoi:10.1007/JHEP02(2023)231http://cds.cern.ch/record/2798736engKalinowski, J.Kotlarski, W.Rebelo, M.N.de Medeiros Varzielas, I.3HDM with ∆(27) symmetry and its phenomenological consequenceshep-phParticle Physics - PhenomenologyWe perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global ∆(27) discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group. For each of the known tree-level minima we study the mass spectra and use the oblique parameters STU as well as perturbative unitarity to constrain the parameter space of the model. We then discuss phenomenological consequences of some leading order flavour mixing quark Yukawa couplings by considering the flavour violation process b → sγ.We show that perturbative unitarity significantly constrains parameters of the model while, conversely, the beyond the Standard Model contributions to the b → sγ decay are automatically tamed by the symmetry.We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global $\Delta(27)$ discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group. For each of the known tree-level minima we study the mass spectra and use the oblique parameters $STU$ as well as perturbative unitarity to constrain the parameter space of the model. We then discuss phenomenological consequences of some leading order flavour mixing quark Yukawa couplings by considering the flavour violation process $b \to s \gamma$. We show that perturbative unitarity significantly constrains parameters of the model while, conversely, the beyond the Standard Model contributions to the $b \to s \gamma$ decay are automatically tamed by the symmetry.arXiv:2112.12699CERN-TH-2021-182oai:cds.cern.ch:27987362021-12-23
spellingShingle hep-ph
Particle Physics - Phenomenology
Kalinowski, J.
Kotlarski, W.
Rebelo, M.N.
de Medeiros Varzielas, I.
3HDM with ∆(27) symmetry and its phenomenological consequences
title 3HDM with ∆(27) symmetry and its phenomenological consequences
title_full 3HDM with ∆(27) symmetry and its phenomenological consequences
title_fullStr 3HDM with ∆(27) symmetry and its phenomenological consequences
title_full_unstemmed 3HDM with ∆(27) symmetry and its phenomenological consequences
title_short 3HDM with ∆(27) symmetry and its phenomenological consequences
title_sort 3hdm with ∆(27) symmetry and its phenomenological consequences
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP02(2023)231
http://cds.cern.ch/record/2798736
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AT demedeirosvarzielasi 3hdmwith27symmetryanditsphenomenologicalconsequences