Dark CP-violation through the $Z$-portal

Understand

Despite great agreement with experiment, the Standard Model (SM) of particle physics lacks a viable Dark Matter (DM) candidate and sufficient amount of CP-violation to account for the observed baryon excess in the universe.

• Non-minimal Higgs frameworks are economic extensions of the SM which could remedy these shortcomings.
• Within the framework of a three Higgs doublet model, we introduce an extended dark sector which accommodates both DM and CP-violation.
• Such dark sources of CP-violation do not contribute to the Electric Dipole Moments and are therefore unconstrained.