Dark Matter and Baryon Asymmetry from the very Dawn of Universe

Understand

We propose a universal mechanism of producing dark matter and baryon (lepton) charge at the stage of the quasi-de Sitter expansion of the Universe---inflation.

• The key ingredient of the mechanism is a linear coupling of the field, responsible for generation of dark matter or baryon (lepton) charge, to a function of the inflaton.
• During inflation this induces almost constant force dragging the corresponding field to the non-zero value.
• This force explicitly breaks quantum numbers associated with dark matter/baryon abundance at later stages.