Speaker
Dr
Kalliopi Petraki
(University of Melbourne (AU))
Description
The similarity of the visible and the dark matter relic abundances suggests related production mechanisms. This is possible if the dark matter density is -analogously to the visible matter- due to an asymmetry in a dark particle number which is conserved at low energies. In pangenesis, the visible and dark asymmetries are produced jointly via Affleck-Dine dynamics, and they compensate each other under an always conserved generalised baryon number. Supersymmetry, GeV-scale dark-matter mass (favoured by current direct detection experiments) and a Z' boson with a significant invisible width into the dark sector would constitute evidence for this mechanism.
Author
Dr
Kalliopi Petraki
(University of Melbourne (AU))
