Speaker
Felix Brümmer
(LUPM Montpellier, France)
Description
Dark matter could consist mainly of magnetic monopoles of a dark non-abelian gauge group. These dark monopoles could be produced during a thermal phase transition in the early Universe. We show that, in a minimal model and with quite general assumptions, this scenario cannot be realized, since the dark matter abundance is always dominated by dark gauge bosons. In a non-minimal extension of the model with a light dark fermion, monopoles can be dark matter, but such models are quite constrained as they predict extra dark radiation. Talk based on 2509.21924 and work in progress with Giacomo Ferrante, Théodore Fischer and Michele Frigerio.
Author
Felix Brümmer
(LUPM Montpellier, France)