Speaker
Dr
Matti Heikinheimo
(Helsinki Institute of Physics)
Description
Self interacting dark matter (SIDM) is a long-standing candidate to alleviate the problems of collisionless cold dark matter (CDM) in cosmic structure formation at small scales. I will review the status of the small scale structure problems, and the feasibility of the SIDM solution in light of the current constraints on the DM self scattering cross section. I will present an overview of the particle physics models that can reproduce the SIDM phenomenology. Finally, I will discuss how the self interacting nature of the DM particles may impact the production mechanism of DM in the early universe.
Author
Dr
Matti Heikinheimo
(Helsinki Institute of Physics)
