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Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models
- Source :
- Phys. Rev. D 100, 075011 (2019)
- Publication Year :
- 2019
-
Abstract
- 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.<br />Comment: 33 pages, 11 figures; revisions to match the published version
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 100, 075011 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1907.09684
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.100.075011