1126-6708_2006_11_038.pdf (363.18 kB)
Baryogenesis in the two-Higgs doublet model
journal contribution
posted on 2023-06-08, 07:51 authored by Lars Fromme, Stephan HuberStephan Huber, Michael SeniuchWe consider the generation of the baryon asymmetry in the two-Higgs doublet model. Investigating the thermal potential in the presence of CP violation, as relevant for baryogenesis, we find a strong first-order phase transition if the extra Higgs states are heavier than about 300 GeV. The mass of the lightest Higgs can be as large as about 200 GeV. We compute the bubble wall properties, including the profile of the relative complex phase between the two Higgs vevs. The baryon asymmetry is generated by top transport, which we treat in the WKB approximation. We find a baryon asymmetry consistent with observations. The neutron electric dipole moment is predicted to be larger than about 10(-27) ecm and can reach the current experimental bound. Low values of tan beta are favored.
History
Publication status
- Published
File Version
- Published version
Journal
Journal of High Energy PhysicsISSN
1126-6708External DOI
Issue
11Volume
2006Page range
038-038Department affiliated with
- Physics and Astronomy Publications
Notes
I was collaboration leader. The numerics was carried out by Fromme and Seniuch, while the conceptual parts of the computation were mostly done by myself. The paper shows in detail that electroweak baryogenesis works successfully in the Two Higgs Doublet Model, in contrast to earlier work on the subject.Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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