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Electroweak baryogenesis: Concrete in a SUSY model with a gauge singlet
journal contribution
posted on 2023-06-07, 20:41 authored by Stephan HuberStephan Huber, M G SchmidtSUSY models with a gauge singlet easily allow for a strong first order electroweak phase transition (EWPT) if the vevs of the singlet and Higgs fields are of comparable size. We discuss the profile of the stationary expanding bubble wall and CP-violation in the effective potential, in particular transitional CP-violation inside the bubble wall during the EWPT. The dispersion relations for charginos contain CP-violating terms in the WKB approximation. These enter as source terms in the Boltzmann equations for the (particle-antiparticle) chemical potentials and fuel the creation of a baryon asymmetry through the weak sphaleron in the hot phase. This is worked out for concrete parameters.
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Publication status
- Published
Journal
Nuclear Physics BISSN
0550-3213Publisher
ElsevierExternal DOI
Issue
1-2Volume
606Page range
183-230Department affiliated with
- Physics and Astronomy Publications
Notes
The research topic was suggested by my PhD adviser M. Schmidt. I have carried out the project quite independently. The paper presents the first complete implementation of electroweak baryogenesis in a realistic model.Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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