A Second Higgs Doublet in the Early Universe: Baryogenesis and Gravitational Waves

We show that simple Two Higgs Doublet models still provide a viable explanation for the matter-antimatter asymmetry of the Universe via electroweak baryogenesis, even after taking into account the recent order-of-magnitude improvement on the electron-EDM experimental bound by the ACME Collaboration....

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Bibliographic Details
Published inarXiv.org
Main Authors Dorsch, G C, Huber, S J, Konstandin, T, J M No
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 17.11.2016
Subjects
Antimatter
Cosmology
Gravitation
Gravitational waves
Phase transitions
Physics - Cosmology and Nongalactic Astrophysics
Physics - High Energy Physics - Phenomenology
Universe
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Summary:We show that simple Two Higgs Doublet models still provide a viable explanation for the matter-antimatter asymmetry of the Universe via electroweak baryogenesis, even after taking into account the recent order-of-magnitude improvement on the electron-EDM experimental bound by the ACME Collaboration. Moreover we show that, in the region of parameter space where baryogenesis is possible, the gravitational wave spectrum generated at the end of the electroweak phase transition is within the sensitivity reach of the future space-based interferometer LISA.
ISSN:2331-8422
DOI:10.48550/arxiv.1611.05874