Asymmetric Dark Matter via Unstable ``WIMPs"

ORAL

Abstract

Inspired by the similarity in their contribution to the overall energy density of matter in the universe, asymmetric dark matter (ADM) theorizes a common origin to dark and baryonic matter. Although this can be seen as a departure from historically popular weakly interacting massive particles (WIMPs), this talk demonstrates that ADM may be sourced from the decay of an unstable "WIMP". This decay is staggered into a few steps, yielding a number of interesting possibilities for asymmetry production. Among the interesting outcomes of this splitting are a UV-complete mechanism for the production of a matter asymmetry and global generalized baryon number conservation. Although this work focuses on a toy model with fermonic DM carrying a dark baryon number, similar processes involving the production of a lepton/DM asymmetry or scalar ADM are possible.

Presenters

  • Michael Shamma

    University of California, Riverside

Authors

  • Michael Shamma

    University of California, Riverside