Non-sterile electroweak-scale right-handed neutrinos and the dual nature of the 125-GeV scalar

Abstract

Can, and under which conditions, the 125-\gev SM-like scalar with the signal strengths for its decays into $W^{+}{W}^{-}$, $ZZ$, $\gamma \gamma$, $b\bar{b}$ and $\tau \bar{\tau }$ being consistent with experiments be accommodated in models that go beyond the Standard Model? Is it truly what it appears to be, namely the SM Higgs boson, or could it be quite different? A minimal extension of the original electroweak-scale right-handed neutrino model, in which right-handed neutrinos naturally obtain electroweak-scale masses, shows a scalar spectrum which includes either the 125-\gev SM-like scalar or a scalar which is quite {\em unlike} that of the Standard Model, both of which possessing signal strengths compatible with experiment. In other words, the 125-\gev scalar could be an {\em impostor}.

36 double-column pages, 13 Figures, 9 Tables. Typos corrected. Version to appear in Nuclear Physics B

References in corpus (9)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV
• Search for Scalar Diphoton Resonances in the Mass Range $65-600$ GeV with the ATLAS Detector in $pp$ Collision Data at $\sqrt{s}$ = 8 $TeV$
• A model of electroweak-scale right-handed neutrino mass
• Electroweak-scale mirror fermions, $\mu \to e\gamma$ and $\tau \to \mu \gamma$

Cited by in corpus (16)

• Topologically stable, finite-energy electroweak-scale monopoles
• Lepton Flavor Violating Decays of Neutral Higgses in Extended Mirror Fermion Model
• Top Quark Rare Decays via Loop-Induced FCNC Interactions in Extended Mirror Fermion Model
• Lepton Flavor Violating Radiative Decays in EW-Scale ${\nu }_R$ Model: An Update
• The search for electroweak-scale right-handed neutrinos and mirror charged leptons through like-sign dilepton signals
• The search for mirror quarks at the LHC
• Fate of the true-vacuum bubbles
• Electron Electric Dipole Moment in Mirror Fermion Model with Electroweak Scale Non-sterile Right-handed Neutrinos
• Muon-to-Electron Conversion in Mirror Fermion Model with Electroweak Scale Non-Sterile Right-handed Neutrinos
• On neutrino and charged lepton masses and mixings: A view from the electroweak-scale right-handed neutrino model
• Muon anomalous magnetic dipole moment in a low scale type I see-saw model
• Dynamical Electroweak Symmetry Breaking in the model of electroweak-scale right-handed neutrinos
• A model of light pseudoscalar dark matter
• Solitons and instantons in vacuum stability: physical phenomena
• The $\mu \to e\gamma$ decay in an EW-scale non-sterile RH neutrino model
• Prospect of the Electroweak Scale Right-handed neutrino model in the Lifetime Frontier