A three Higgs doublet model with symmetry-suppressed flavour changing neutral currents

@article{Das2021ATH,
  title={A three Higgs doublet model with symmetry-suppressed flavour changing neutral currents},
  author={Dipankar Das and Pedro Miguel Martins Ferreira and Ant{\'o}nio P. Morais and Ian Padilla-Gay and Roman Pasechnik and J. Pedro Rodrigues},
  journal={Journal of High Energy Physics},
  year={2021}
}
Abstract We construct a three-Higgs doublet model with a flavour non-universal U(1) × ℤ2 symmetry. That symmetry induces suppressed flavour-changing interactions mediated by neutral scalars. New scalars with masses below the TeV scale can still successfully negotiate the constraints arising from flavour data. Such a model can thus encourage direct searches for extra Higgs bosons in the future collider experiments, and includes a non-trivial flavour structure. 
Anomaly-free axion dark matter in three Higgs doublet model and its phenomenological implications
Abstract We study phenomenological implications of an axion that arises as a pseudo Nambu-Goldstone boson due to the spontaneous breaking of anomaly-free global flavor symmetry. One interesting
BFB conditions on a class of symmetry constrained 3HDM
We study the bounded from below (BFB) conditions on a class of three Higgs doublet models (3HDM) constrained by the symmetry groups U (1) × U (1), U (1) × Z 2 , and Z 2 × Z 2 . These constraints must

References

SHOWING 1-10 OF 85 REFERENCES
Self-cancellation of a scalar in neutral meson mixing and implications for the LHC
Flavour changing neutral scalar interactions are a standard feature of generic multi Higgs models. These are constrained by mixing in the neutral meson systems. We consider situations where there are
Models of CP violation exclusively via neutral scalar exchange
I suggest a two-Higgs-doublet model in which CP violation is mediated only by the neutral Higgs bosons, via the mechanism of scalar-pseudoscalar mixing. In this model there is no CP violation in the
Charged-Higgs phenomenology in the aligned two-Higgs-doublet model
The alignment in flavour space of the Yukawa matrices of a general two-Higgs-doublet model results in the absence of tree-level flavour-changing neutral currents. In addition to the usual fermion
Feasibility of light scalars in a class of two-Higgs-doublet models and their decay signatures
We demonstrate that light charged and extra neutral scalars in the (100-200) GeV mass range pass the potentially dangerous flavor constraints in a particular class of two-Higgs-doublet model which
Scalar sector properties of two-Higgs-doublet models with a global U(1) symmetry
A bstractWe analyze the scalar sector properties of a general class of two-Higgs-doublet models which has a global U(1) symmetry in the quartic terms. We find constraints on the parameters of the
...
...