Speaker
Mr
Marco Hufnagel
(DESY Hamburg)
Description
We study constraints from Big Bang Nucleosynthesis on inert particles in a
dark sector which contribute to the Hubble rate and therefore change the predictions of the
primordial nuclear abundances. We pay special attention to the case of MeV-scale particles
decaying into dark radiation, which are neither fully relativistic nor non-relativistic during
all temperatures relevant to Big Bang Nucleosynthesis. As an application we discuss the
implications of our general results for models of self-interacting dark matter with light
mediators.
Primary authors
Kai Schmidt-Hoberg
(DESY)
Mr
Marco Hufnagel
(DESY Hamburg)
Dr
Sebastian Wild
(DESY)
