# Higgs alignment and the top quark

@article{Eichten2021HiggsAA,
title={Higgs alignment and the top quark},
author={E. Eichten and K. Lane},
journal={arXiv: High Energy Physics - Phenomenology},
year={2021}
}
• Published 2021
• Physics
• arXiv: High Energy Physics - Phenomenology
There is a surprising connection between the top quark and Higgs alignment in Gildener-Weinberg multi-Higgs doublet models. Were it not for the top quark and its large mass, the coupling of the 125 GeV Higgs boson $H$ to gauge bosons and fermions would be indistinguishable from those of the Standard Model Higgs. The top quark's coupling to a single Higgs doublet breaks this perfect alignment in higher orders of the Coleman-Weinberg loop expansion of the effective potential. But the effect is… Expand

#### References

SHOWING 1-10 OF 43 REFERENCES
Natural Stabilization of the Higgs Boson's Mass and Alignment
• Physics
• 2018
Current data from the LHC indicate that the 125 GeV Higgs boson, $H$, is either the single Higgs of the Standard Model or, to a good approximation, an "aligned Higgs". We propose that $H$ is theExpand
Radiative Corrections to Scalar Masses and Mixing in a Scale Invariant Two Higgs Doublet Model
• Physics
• 2012
We study the Higgs boson mass spectrum of a classical scale invariant realization of the two Higgs doublet model (SI-2HDM). The classical scale symmetry of the theory is explicitly broken by quantumExpand
The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit
• Physics
• 2003
A CP-even neutral Higgs boson with standard-model-like couplings may be the lightest scalar of a two-Higgs-doublet model. We study the decoupling limit of the most general CP-conservingExpand
Symmetry Breaking and Scalar Bosons
• Physics
• 1976
There are reasons to suspect that the spontaneous breakdown of the gauge symmetries of the observed weak and electromagnetic interactions may be produced by the vacuum expectation values of masslessExpand
Impersonating the Standard Model Higgs boson: alignment without decoupling
• Physics
• 2014
A bstractIn models with an extended Higgs sector there exists an alignment limit, in which the lightest CP-even Higgs boson mimics the Standard Model Higgs. The alignment limit is commonly associatedExpand
Phenomenology of the new light Higgs bosons in Gildener-Weinberg models
• Physics
• 2020
Gildener-Weinberg (GW) models of electroweak symmetry breaking are especially interesting because the low mass and nearly Standard Model couplings of the $125\,{\rm GeV}$ Higgs boson, $H$, areExpand
Higgs alignment from extended supersymmetry
• Physics, Medicine
• The European physical journal. C, Particles and fields
• 2018
It is shown that raising the scale at which the extended supersymmetry is manifest and including quantum corrections actually improves the alignment, and an effective field theory approach including new threshold corrections and two-loop RGEs, plus two- loop corrections to the Higgs mass in the low-energy theory is used. Expand
Discriminative phenomenological features of scale invariant models for electroweak symmetry breaking
• Physics
• 2016
Abstract Classical scale invariance (CSI) may be one of the solutions for the hierarchy problem. Realistic models for electroweak symmetry breaking based on CSI require extended scalar sectorsExpand
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
Results are presented from searches for the standard model Higgs boson in protonproton collisions at √ s = 7 and 8 TeV in the Compact Muon Solenoid experiment at the LHC, using data samplesExpand
Approximate Higgs alignment without decoupling
The properties of the Higgs boson, h(125), observed in LHC data are consistent with Standard Model predictions. Consequently, if additional Higgs bosons are present, then the direction of h(125) inExpand