New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies

Abstract

We investigate a new scenario of the two Higgs doublet model, where the current experimental data for the electroweak rho parameter and those for the Higgs boson couplings can be simultaneously explained. In this scenario, the two Higgs doublet model is supposed to be a low energy effective theory up to a high energy scale $\Lambda$, above which a fundamental theory should appear. It is assumed that the Higgs potential respects a global symmetry at $\Lambda$ (the twisted custodial symmetry), which is to be given as a consequence of the global symmetry structure of the fundamental theory above $\Lambda$. By the analysis using one-loop renormalization group equations, the above experimental data can be explained in a natural way even when the masses of the extra Higgs bosons are near the electroweak scale. We also discuss the predictions on the mass spectrum of the additional Higgs bosons and also those on coupling constants of the standard-model-like Higgs boson, which make it possible to test this scenario at current and future collider experiments.

30 pages, 4 figures, version accepted by Journal of High Energy Physics

References in corpus (14)

• Gauge Singlet Scalars as Cold Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• The oblique parameters in multi-Higgs-doublet models
• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning
• Basis-independent methods for the two-Higgs-doublet model III: The CP-conserving limit, custodial symmetry, and the oblique parameters S, T, U
• A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model
• Fingerprinting non-minimal Higgs sectors
• Generalized CP symmetries and special regions of parameter space in the two-Higgs-doublet model
• Bounds on scalar masses in two Higgs doublet models
• Search for a 'stable alignment limit' in two Higgs-doublet models
• High-scale validity of a two-Higgs doublet scenario: a study including LHC data
• Complementarity in direct searches for additional Higgs bosons at the LHC and the International Linear Collider
• Two-loop corrections to the $\rho$ parameter in Two-Higgs-Doublet Models

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• Two-loop analysis of classically scale-invariant models with extended Higgs sectors
• Chasing the two-Higgs doublet model in the di-Higgs production
• Maximising CP Violation in Naturally Aligned Two-Higgs Doublet Models
• Current Status of the Muon g-2 Interpretations within Two-Higgs-Doublet Models
• Exceptional regions of the 2HDM parameter space
• Disentangling the high and low cutoff scales via the trilinear Higgs couplings in the type-I two-Higgs-doublet model