Strong First Order Electroweak Phase Transition in the CP-Conserving 2HDM Revisited

Understand

The discovery of the Higgs boson by the LHC experiments ATLAS and CMS has marked a milestone for particle physics.

• Yet, there are still many open questions that cannot be answered within the Standard Model (SM).
• For example, the generation of the observed matter-antimatter asymmetry in the universe through baryogenesis can only be explained qualitatively in the SM.
• A simple extension of the SM compatible with the current theoretical and experimental constraints is given by the 2-Higgs-Doublet Model (2HDM) where a second Higgs doublet is added to the Higgs sector.