Signal strength and W-boson mass measurements as a probe of the electro-weak phase transition at colliders -- Snowmass White Paper
- arXiv
- 2205.14379
- Date
- 2022-05-28
- Frontier
- Energy Frontier (EF)
- Topical groups
- Submitted by
- Tania Robens
Abstract
We consider an extension of the scalar sector of the Standard Model (SM) by an additional gauge singlet, which mixes with a part of the SM-like Higgs doublet. Within this model, parameter-space regions exist that can lead to a strong first-order electro-weak phase transition, a necessary condition for electro-weak baryogenesis. We discuss how such regions of the parameter space can be tested using the SM-like Higgs boson's signal strength measurements, as well as precision observables, such as e.g. the W-boson mass, at current and future colliders.