4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Pangenesis: visible and dark matter from a common origin

7 Jul 2012, 09:00
Room 216 (Melbourne Convention and Exhibition Centre)

Room 216

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 11. Particle Astrophysics and Cosmology Room 216 - Particle Astrophysics and Cosmology -TR11


Dr Kalliopi Petraki (University of Melbourne (AU))


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.

Primary author

Dr Kalliopi Petraki (University of Melbourne (AU))

Presentation materials