CP-Violating 2HDMs Emerging from 3-3-1 Models

Abstract

We investigate CP violating 2 Higgs doublet models as an effective theory emerging from models with an $SU(3{)}_L\otimes U(1{)}_X$ gauge symmetry. Because of the extension of the electroweak symmetry, a characteristic structure of Yukawa interactions appears with new CP violating phases at the electroweak scale. In this scenario, the charged Higgs boson loop provides dominant and sizable contributions to the neutron electric dipole moment (nEDM) at one-loop level. We find that the prediction of the nEDM can be slightly smaller than the current upper limit, $\mathcal{O}(10^{-26})e\text{cm}$, with the mass of the charged Higgs boson and new CP violating phases to be a few hundred GeV and $\mathcal{O}(1)$, respectively, under the constraints from the meson mixings, the $B\to X_s\gamma$ decay and current LHC data.

arXiv commentMore flavor constraints taken into account, discussions of Higgs decays added and references added

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Cited by in corpus (2)

• On the viability of a light scalar spectrum for 3-3-1 models
• Maximal value for trilinear Higgs coupling in a 3-3-1 EFT