Baryon Asymmetry and Dark Matter Through the Vector-Like Portal

Understand

A possible connection between the cosmological baryon asymmetry, dark matter and vector-like fermions is investigated.

• In this scenario an asymmetry generated through baryogenesis or leptogenesis (in the vector-like matter sector) connects the baryon asymmetry to the dark matter density.
• We present explicit renormalizable models where this connection occurs.
• These models have asymmetric dark matter and a significant invisible Higgs decay width to dark matter particles is possible.