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Family symmetries and alignment in multi-Higgs doublet models

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arxiv 1104.2601 v1 pith:4S5JQ3A3 submitted 2011-04-13 hep-ph

Ivo de Medeiros Varzielas This is my paper · ORCID
classification hep-ph
keywords alignmentdoubletfamilymodelsmulti-higgssymmetriesyukawacancellation
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The exact alignment of the Yukawa structures on multi-Higgs doublet models provides cancellation of tree-level flavour changing couplings of neutral scalar fields. We show that family symmetries can provide a suitable justification for the Yukawa alignment.

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  1. FCNC-free multi-Higgs-doublet models from broken family symmetries

    hep-ph 2019-08 conditional novelty 5.0 of 10

    Residual flavor symmetries enforce simultaneously diagonal Yukawa couplings across all Higgs doublets when they fully control fermion mixing, yielding a generalized Yukawa Alignment that is free of tree-level FCNC.

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