Emergent Dark Matter, Baryon, and Lepton Numbers

Understand

We present a new mechanism for transferring a pre-existing lepton or baryon asymmetry to a dark matter asymmetry that relies on mass mixing which is dynamically induced in the early universe.

• Such mixing can succeed with only generic scales and operators and can give rise to distinctive relationships between the asymmetries in the two sectors.
• The mixing eliminates the need for the type of additional higher-dimensional operators that are inherent to many current asymmetric dark matter models.
• We consider several implementations of this idea.