Alignment limit in three Higgs-doublet models

Abstract

The LHC Higgs data is showing a gradual inclination towards the SM result and realization of an SM-like limit becomes essential for BSM scenarios to survive. Considering the accuracy that can be achieved in future colliders, BSMs that acquire the alignment limit with an SM-like Higgs boson coupling can surpass others in the long run. Using a convenient parametrization, we demonstrate that the alignment limit for CP-conserving 3HDMs takes on the same analytic structure as that in the case of 2HDMs. Using the example of a $Z_3$-symmetric 3HDM, we illustrate how such alignment conditions can be efficiently implemented for numerical analysis in a realistic scenario.

typos fixed, version accepted for publication in Phys. Rev. D

References in corpus (15)

• Symmetry breaking patterns in 3HDM
• Search for a 'stable alignment limit' in two Higgs-doublet models
• Discrete symmetries in the three-Higgs-doublet model
• Analysis of an extended scalar sector with $S_3$ symmetry
• Multi-Higgs doublet models: physical parametrization, sum rules and unitarity bounds
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• Heavy Higgs boson decays in the alignment limit of the 2HDM
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• Stability and symmetry breaking in the general three-Higgs-doublet model
• Constraints on Parameter Space from Perturbative Unitarity in Models with Three Scalar Doublets
• Recognizing symmetries in 3HDM in basis-independent way
• Three generations of Higgses and the cyclic groups
• Quark mixing in an $S_3$ symmetric model with two Higgs doublets
• Higgs boson couplings in multi-doublet models with natural flavour conservation
• A Three Doublet Lepton-Specific Model

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• Current bounds on the Type-Z $Z_3$ three Higgs doublet model
• BFB conditions on a class of symmetry constrained 3HDM
• Slight excess at 130 GeV in search for a charged Higgs boson decaying to a charm quark and a bottom quark at the Large Hadron Collider
• New physics implications of VBF searches exemplified through the Georgi-Machacek model
• Anomaly-free axion dark matter in three Higgs doublet model and its phenomenological implications
• Combining Evolutionary Strategies and Novelty Detection to go Beyond the Alignment Limit of the $Z_3$ 3HDM
• Fingerprinting the Type-Z three Higgs doublet models
• Democratic three Higgs-doublet models: the custodial limit and wrong-sign Yukawa
• Diluting quark flavor hierarchies using dihedral symmetry
• Loop induced $h\to \gamma \gamma ,Z\gamma ,gg$ decays in 3-Higgs doublet models
• Unearthing large pseudoscalar Yukawa couplings with Machine Learning
• Fitting the $Zb\bar{b}$ vertex in the two-Higgs-doublet model and in the three-Higgs-doublet model
• ILC Phenomenology of the $Z_3$ symmetric Type-Z Three Higgs Doublet Model
• Crossed two Higgs-doublet models: reduction of Yukawa parameters in the low-scale limit of left-right symmetry and other avatars
• A three Higgs doublet model with symmetry-suppressed flavour changing neutral currents
• Scalar and gauge sectors in the 3-Higgs Doublet Model under the S3-symmetry