Speaker
Pieter Braat
(Nikhef)
Description
Dark Matter (DM) annihilations in the early universe can inject energy into the Standard Model (SM) plasma, impacting Big Bang Nucleosynthesis (BBN) through photodisintegration of light elements. Observed element abundances thus provide constraints on DM annihilation strength. I will present bounds on resonant DM models, where an additional particle with mass near twice the DM mass enhances annihilations—potentially leading to stringent BBN constraints.
Author
Pieter Braat
(Nikhef)