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Simplified Models of Mixed Dark Matter

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arxiv 1311.5896 v1 pith:PUUCLFP7 submitted 2013-11-22 hep-ph astro-ph.CO

Clifford Cheung , David Sanford This is my paper · ORCID
classification hep-phastro-ph.CO
keywords modelssimplifiedthermalabundanceaccommodateblindcandidatesconstraints
verification ladder T0 review T1 audit T2 compute T3 formal
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We explore simplified models of mixed dark matter (DM), defined here to be a stable relic composed of a singlet and an electroweak charged state. Our setup describes a broad spectrum of thermal DM candidates that can naturally accommodate the observed DM abundance but are subject to substantial constraints from current and upcoming direct detection experiments. We identify "blind spots" at which the DM-Higgs coupling is identically zero, thus nullifying direct detection constraints on spin independent scattering. Furthermore, we characterize the fine-tuning in mixing angles, i.e. well-tempering, required for thermal freeze-out to accommodate the observed abundance. Present and projected limits from LUX and XENON1T force many thermal relic models into blind spot tuning, well-tempering, or both. This simplified model framework generalizes bino-Higgsino DM in the MSSM, singlino-Higgsino DM in the NMSSM, and scalar DM candidates that appear in models of extended Higgs sectors.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Minimal Dark Matter: Generalized Framework and Direct-Detection Sensitivity

    hep-ph 2026-02 conditional novelty 6.0 of 10

    For Higgs-coupled minimal dark matter, the 3M2D, 5M4D, and 7M6D combinations can have direct-detection cross sections below the neutrino floor, so next-generation direct detection cannot fully exclude the model.

  2. Gravitational Wave Probe of Singlet-Doublet Dark Matter Induced Radiative Neutrino Mass

    hep-ph 2025-11 conditional novelty 5.0 of 10

    A radiative-seesaw model with singlet-doublet dark matter can satisfy neutrino, muon, flavor, relic, and direct-detection constraints while producing a first-order electroweak phase transition with gravitational waves...

  3. Shedding Light on Dark Matter at the LHC with Machine Learning

    hep-ph 2025-09 conditional novelty 5.0 of 10

    A machine-learned LHC analysis projects 5-sigma sensitivity to singlino-dominated NMSSM dark matter via radiative higgsino decays to photons, covering higgsino masses up to 225 GeV.

  4. Inert dark matter in three Higgs doublet model: a blind spot narrative

    hep-ph 2025-08 unverdicted novelty 5.0 of 10

    In a Z3 x Z2-symmetric three-Higgs-doublet model with one inert doublet, the tree-level dark matter-nucleon scattering cross-section can vanish in a blind spot set by the dark sector mass splitting.

  5. Impact of conversion-driven processes on singlet-doublet Majorana dark matter relic

    hep-ph 2025-11 conditional novelty 4.0 of 10

    For Majorana singlet-doublet dark matter, including conversion-driven processes enlarges the relic-density- and direct-detection-allowed mixing range to sinθ≈2×10^-7–0.16 for M_DM up to ~1750 GeV.

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