One-loop Corrections to the Higgs Boson Invisible Decay in the Dark Doublet Phase of the N2HDM

Abstract

The Higgs invisible decay width may soon become a powerful tool to probe extensions of the Standard Model with dark matter candidates at the Large Hadron Collider. In this work, we calculate the next-to-leading order (NLO) electroweak corrections to the 125 GeV Higgs decay width into two dark matter particles. The model is the next-to-minimal 2-Higgs-doublet model (N2HDM) in the dark doublet phase, that is, only one doublet and the singlet acquire vacuum expectation values. We show that the present measurement of the Higgs invisible branching ratio, BR$(H\to$ invisible $<0.11$), does not lead to constraints on the parameter space of the model at leading order. This is due to the very precise measurements of the Higgs couplings but could change in the near future. Furthermore, if NLO corrections are required not to be unphysically large, no limits on the parameter space can be extracted from the NLO results.

References in corpus (19)

• 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
• FeynRules - Feynman rules made easy
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
• SARAH 3.2: Dirac Gauginos, UFO output, and more
• Precise predictions for the Higgs-boson decay H -> W W/Z Z -> 4 leptons
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Inert Doublet Model and LEP II Limits
• HiggsSignals-2: Probing new physics with precision Higgs measurements in the LHC 13 TeV era
• Status of the Inert Doublet Model and the Role of multileptons at the LHC
• A new viable region of the inert doublet model
• Dilepton constraints in the Inert Doublet Model from Run 1 of the LHC
• The Inert Doublet Model and Inelastic Dark Matter
• Positrons and antiprotons from inert doublet model dark matter
• Extending two-Higgs-doublet models by a singlet scalar field - the Case for Dark Matter
• Gauge invariant one-loop corrections to Higgs boson couplings in non-minimal Higgs models
• Gauge-independent $\overline{MS}$ renormalization in the 2HDM
• Gauge-independent Renormalization of the N2HDM

Cited by in corpus (3)

• The Trilinear Higgs Self-Couplings at $\mathcal{O}({\alpha }_t^2)$ in the CP-Violating NMSSM
• One-loop Corrections to the Higgs Boson Invisible Decay in a Complex Singlet Extension of the SM
• Feasibility of the observation of a heavy scalar through the fully hadronic final state at the LHeC