Scalar Electroweak Multiplet Dark Matter

Abstract

We revisit the theory and phenomenology of scalar electroweak multiplet thermal dark matter. We derive the most general, renormalizable scalar potential, assuming the presence of the Standard Model Higgs doublet, $H$, and an electroweak multiplet $\Phi$ of arbitrary SU(2${)}_L$ rank and hypercharge, $Y$. We show that, in general, the $\Phi$-$H$ Higgs portal interactions depend on three, rather than two independent couplings as has been previously considered in the literature. For the phenomenologically viable case of $Y=0$ multiplets, we focus on the septuplet and quintuplet cases, and consider the interplay of relic density and spin-independent direct detection cross section. We show that both the relic density and direct detection cross sections depend on a single linear combination of Higgs portal couplings, ${\lambda }_{\mathrm{eff}}$. For ${\lambda }_{\mathrm{eff}}\sim \mathcal{O}(1)$, present direct detection exclusion limits imply that the neutral component of a scalar electroweak multiplet would comprise a subdominant fraction of the observed DM relic density.

arXiv comment15 pages, 4 figures

References in corpus (31)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Self-interactions and Small Scale Structure
• Minimal Dark Matter
• micrOMEGAs3.1 : a program for calculating dark matter observables
• The Core-Cusp Problem
• Neutralino Relic Density including Coannihilations
• The Inert Doublet Model: an Archetype for Dark Matter
• Cosmology and Astrophysics of Minimal Dark Matter
• Explosive Dark Matter Annihilation
• Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter
• The Sphaleron Rate in the Minimal Standard Model
• Scalar Multiplet Dark Matter
• Vacuum Stability, Perturbativity, and Scalar Singlet Dark Matter
• The inert doublet model of dark matter revisited
• WIMP dark matter, Higgs exchange and DAMA
• The Sommerfeld enhancement for dark matter with an excited state
• Direct Detection of Electroweak-Interacting Dark Matter
• Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators
• Exact Cross Sections for the Neutralino-Slepton Coannihilation
• Gravitational Wave Signals of Electroweak Phase Transition Triggered by Dark Matter
• Accidental matter at the LHC
• Sommerfeld corrections to type-II and III leptogenesis
• Gamma-rays from Heavy Minimal Dark Matter
• Scalar Representations in the Light of Electroweak Phase Transition and Cold Dark Matter Phenomenology
• Landau pole in the Standard Model with weakly interacting scalar fields
• Millicharge or Decay: A Critical Take on Minimal Dark Matter
• The scalar Singlet-Triplet Dark Matter Model
• Scalar Septuplet Dark Matter and Enhanced $h\to \gamma \gamma$ Decay Rate
• Effective Interaction of Electroweak-Interacting Dark Matter with Higgs Boson and Its Phenomenology
• From gamma ray line signals of dark matter to the LHC

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• The Electroweak Phase Transition: A Collider Target
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• Two-Step Electroweak Symmetry-Breaking: Theory Meets Experiment
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• Scalar Multiplet Dark Matter in a Fast Expanding Universe: resurrection of the desert region
• Direct detections of Majorana dark matter in vector portal
• Effective field theory versus UV-complete model: vector boson scattering as a case study
• Probing Extended Scalar Sectors with Precision $e^{+}{e}^{-}\to Zh$ and Higgs Diphoton Studies
• Dark Matter candidates in a Type-II radiative neutrino mass model
• Two-loop Beta Function for Complex Scalar Electroweak Multiplets
• A Real Triplet-Singlet Extended Standard Model: Dark Matter and Collider Phenomenology
• Probing quadruplet scalar dark matter at current and future $pp$ colliders
• Non-perturbative determination of the sphaleron rate for first-order phase transitions
• Lepton number violating operators with standard model gauge fields: A survey of neutrino masses from 3-loops and their link to dark matter
• Inert sextuplet scalar dark matter at the LHC and future colliders
• Light dark matter around 100 GeV from the inert doublet model
• Phase transitions, anomalous baryon number violation and electroweak multiplet dark matter
• Thermal Real Scalar Triplet Dark Matter