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Electroweak baryogenesis and dark matter from a singlet Higgs
Open accessAbstract
If the Higgs boson H couples to a singlet scalar S via λ m | H | 2 S 2 , a strong electroweak phase transition can be induced through a large potential barrier that exists already at zero temperature. In this case properties of the phase transition can be computed analytically. We show that electroweak baryogenesis can be achieved using CP violation from a dimension-6 operator that couples S to the top-quark mass, suppressed by a new physics scale that can be well above 1 TeV. Moreover the singlet is a dark matter candidate whose relic density is ≲3% of the total dark matter density, but which nevertheless interacts strongly enough with nuclei (through Higgs exchange) to be just below the current XENON100 limits. The DM mass is predicted to be in the range 80–160 GeV.
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Citations
Cited by
Piscopo, M. L., Spannowsky, M., & Waite, P. (2019) · Physical Review D · doi:10.1103/physrevd.100.016002 · Cited by 117
Hamada, Y., Kawai, H., & Kawana, K. (2014) · International Journal of Modern Physics A · doi:10.1142/s0217751x14500997 · Cited by 38
Metadata
- Authors
- Cline, J. M., & Kainulainen, K.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2013-01-08
- Volume
- 2013
- Issue
- 01
- Pages
- 012-012
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W2074713146
- Cited by
- 247
- References
- 0
- FWCI
- 10.21
- Type
- journal article
- Language
- en
- Open access
- green
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- Cline, J. M., & Kainulainen, K. (2013). Electroweak baryogenesis and dark matter from a singlet Higgs. Journal of Cosmology and Astroparticle Physics. https://doi.org/10.1088/1475-7516/2013/01/012
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