Virtual signatures of dark sectors in Higgs couplings

Abstract

Where collider searches for resonant invisible particles loose steam, dark sectors might leave their trace as virtual effects in precision observables. Here we explore this option in the framework of Higgs portal models, where a sector of dark fermions interacts with the standard model through a strong renormalizable coupling to the Higgs boson. We show that precise measurements of Higgs-gauge and triple Higgs interactions can probe dark fermions up to the TeV scale through virtual corrections. Observation prospects at the LHC and future lepton colliders are discussed for the so-called singlet-doublet model of Majorana fermions, a generalization of the bino-higgsino scenario in supersymmetry. We advocate a two-fold search strategy for dark sectors through direct and indirect observables.

arXiv comment20 pages, 7 figures, 1 table

References in corpus (24)

• Supersymmetric Dark Matter
• Automatized One-Loop Calculations in 4 and D dimensions
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• Investigating the near-criticality of the Higgs boson
• SARAH 4: A tool for (not only SUSY) model builders
• First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff
• Searches for supersymmetric particles in e+e- collisions up to 208 GeV and interpretation of the results within the MSSM
• Identifying the Higgs Spin and Parity in Decays to Z Pairs
• An Indirect Model-Dependent Probe of the Higgs Self-Coupling
• The Minimal Model for Dark Matter and Unification
• Compressed electroweakino spectra at the LHC
• Electroweak Baryogenesis and New TeV Fermions
• Dark Matter and Enhanced Higgs to Di-photon Rate from Vector-like Leptons
• Probing the Higgs self coupling via single Higgs production at the LHC
• Higgs-strahlung and $WW$ fusion in $e^{+}{e}^{-}$ collisions
• LHC and Dark Matter Signals of Improved Naturalness
• Constraints on the trilinear Higgs coupling from vector boson fusion and associated Higgs production at the LHC
• The leptonic future of the Higgs
• Direct Detection of Stealth Dark Matter through Electromagnetic Polarizability
• Cornering electroweakinos at the LHC
• Exotic Leptons: Higgs, Flavor and Collider Phenomenology
• CEPC Precision of Electroweak Oblique Parameters and Weakly Interacting Dark Matter: the Fermionic Case
• Shining Light on Polarizable Dark Particles
• Baryogenesis and Dark Matter with Vector-like Fermions

Cited by in corpus (14)

• Learning from Higgs Physics at Future Higgs Factories
• Bounding Quantum Dark Forces
• Probing new electroweak states via precision measurements at the LHC and future colliders
• On Minimal Dark Matter coupled to the Higgs
• Current status and future prospects of the singlet-doublet dark matter model with $CP$ violation
• Exploring triplet-quadruplet fermionic dark matter at the LHC and future colliders
• Probing the Symmetric Higgs Portal with Di-Higgs Boson Production
• Impact of Fermionic Electroweak Multiplet Dark Matter on Vacuum Stability with One-loop Matching
• Indirect Probe of Electroweakly Interacting Particles at the High-Luminosity Large Hadron Collider
• Scalar Quintuplet Minimal Dark Matter with Yukawa Interactions: Perturbative up to the Planck Scale
• Anomalous neutral gauge boson interactions and simplified models
• Flavoured $(g-2{)}_{\mu }$ with Dark Lepton Seasoning
• Higgs Production in Association with a Dark-Z at Future Electron Positron Colliders
• Probing dark sector fermions in Higgs precision studies and direct searches