Strong first order electroweak phase transition in 2HDM confronting future Z & Higgs factories
| Autor: | Anthony G. Williams, Mengchao Zhang, Wei Su |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Physics beyond the Standard Model Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences QC770-798 Type (model theory) 01 natural sciences Sphaleron Higgs sector Standard Model High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Supersymmetry Phenomenology Nuclear and particle physics. Atomic energy. Radioactivity 0103 physical sciences Higgs boson CP violation High Energy Physics::Experiment 010306 general physics |
| Zdroj: | Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-37 (2021) Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| Popis: | The electroweak phase transition can be made first order by extending the Standard Model (SM) Higgs sector with extra scalars. The same new physics can explain the matter-antimatter asymmetry of the universe by supplying an extra source of CP violation and sphaleron processes. In this paper we study the existence of a strong first order electroweak phase transition (SFOEWPT) in the type-I and type-II two Higgs doublet models (2HDM). We focus on how the SFOEWPT requirement constraints the spectrum of non-SM Higgs. Through a parameter space scan, we find that SFOEWPT suggests upper limits on the masses of heavy Higgs $m_{A/H/H^\pm}$, which is less than 1 TeV. High temperature expansion and Higgs vacuum uplifting is used for an analytical understanding of our results. We also study the probe ability on SFOEWPT from Higgs and $Z$-pole precision measurements at the one-loop level at future Higgs & $Z$ factories. And together with theoretical constraints, sizeable loop corrections require $m_A \approx m_{H^\pm} > m_H$ to meet SFOEWPT condition in Type-II 2HDM. 26+12 pages, 10 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink