Electroweak phase transition in non-minimal Higgs sectors

A bstract Higgs sector extensions beyond the Standard Model (BSM) provide additional sources of CP violation and further scalar states that help to trigger a strong first order electroweak phase transition (SFOEWPT) required to generate the observed baryon asymmetry of the Universe through electrowe...

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Bibliographic Details
Published in:The journal of high energy physics 2020-05, Vol.2020 (5), p.16-45, Article 16
Main Authors: Basler, Philipp, Mühlleitner, Margarete, Müller, Jonas
Format: Article
Language:English
Subjects:
Asymmetry
Baryons
Beyond Standard Model
Cosmology
CP violation
Electroweak model
Higgs Physics
High energy physics
Investigations
Numerical analysis
Pair production
Phase transitions
Phenomenology
Physics
Quarks
Regular Article - Theoretical Physics
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Summary:A bstract Higgs sector extensions beyond the Standard Model (BSM) provide additional sources of CP violation and further scalar states that help to trigger a strong first order electroweak phase transition (SFOEWPT) required to generate the observed baryon asymmetry of the Universe through electroweak baryogenesis. We investigate the CP-violating 2-Higgs-Doublet Model (C2HDM) and the Next-to-Minimal 2-Higgs-Doublet Model (N2HDM) with respect to their potential to generate an SFOEWPT while being compatible with all relevant and recent theoretical and experimental constraints. The implications of an SFOEWPT on the collider phenomenology of the two models are analysed in detail in particular with respect to Higgs pair production. We provide benchmark points for parameter points that are compatible with an SFOEWPT and provide distinct di-Higgs signatures.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP05(2020)016