  Electroweak baryogenesis in a two-Higgs doublet model is a well-motivated and
testable scenario for physics beyond the Standard Model. An attractive way of
providing $CP$ violation is through flavor-changing Higgs couplings, where the
top-charm coupling is hardly constrained. This minimal scenario can be tested
by searching for heavy charged and neutral Higgs bosons at the LHC. While the
charged Higgs signature requires a dedicated analysis, the neutral Higgs
signature will be covered by a general search for same-sign top pairs.
Together, they provide a conclusive test of this kind of baryogenesis.
