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Complex singlet extension of the standard model
Open accessAbstract
We analyze a simple extension of the standard model (SM) obtained by adding a complex singlet to the scalar sector (cxSM). We show that the cxSM can contain one or two viable cold dark matter candidates and analyze the conditions on the parameters of the scalar potential that yield the observed relic density. When the cxSM potential contains a global $U(1)$ symmetry that is both softly and spontaneously broken, it contains both a viable dark matter candidate and the ingredients necessary for a strong first order electroweak phase transition as needed for electroweak baryogenesis. We also study the implications of the model for discovery of a Higgs boson at the Large Hadron Collider.
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Cited by
Implications of a scalar dark force for terrestrial experiments
Carroll, S. M., Mantry, S., & Ramsey-Musolf, M. J. (2010) · Physical Review D · doi:10.1103/physrevd.81.063507 · Cited by 32
Metadata
- Authors
- Barger, V., Langacker, P., McCaskey, M., Ramsey-Musolf, M., & Shaughnessy, G.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2009-01-30
- Volume
- 79
- Issue
- 1
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2067260962
- Cited by
- 352
- References
- 0
- FWCI
- 8.60
- Type
- journal article
- Language
- en
- Open access
- green
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
