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Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models

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arxiv 1907.09684 v3 pith:JAQ5CPCF submitted 2019-07-23 hep-ph

Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models

classification hep-ph
keywords darkmatterpseudo-nambu-goldstoneabundancebosoncandidatedetectionhiggs
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study a dark matter model with one singlet complex scalar and two Higgs doublets. The scalar potential respects a softly broken global symmetry, which makes the imaginary part of the singlet become a pseudo-Nambu-Goldstone boson acting as a dark matter candidate. The pseudo-Nambu-Goldstone nature of the boson leads to the vanishing of its tree-level scattering amplitude off nucleons at zero momentum transfer. Therefore, although the interaction strength could be sufficiently large to yield a viable relic abundance via thermal mechanism, direct detection is incapable of probing this candidate. We further investigate the constraints from Higgs measurements, relic abundance observation, and indirect detection.

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Cited by 2 Pith papers

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

  1. Towards a Unified Framework for Pseudo-Nambu-Goldstone Dark Matter and Electroweak Baryogenesis

    hep-ph 2025-09 unverdicted novelty 6.0

    The cS2HDM unifies a pseudo-Nambu-Goldstone dark matter candidate with electroweak baryogenesis in a two-Higgs-doublet plus complex singlet setup, featuring naturally suppressed DM-nucleon scattering and CP-violating ...

  2. Two Higgs doublet model with a complex singlet scalar and Multi-critical Point Principle

    hep-ph 2026-01 unverdicted novelty 5.0

    A 2HDM extended by a complex singlet uses tree-level MPP to motivate degenerate neutral Higgs masses, yielding viable DM phenomenology and a thermally induced strong first-order electroweak phase transition.