Speaker
Sean Tulin
(York University)
Description
Astrophysical observations of the structure of galaxies and clusters are no longer simply proving the existence of DM, but have sharpened into a tool probing the particle physics of DM. I review small scale structure anomalies for CDM and their possible implications for DM physics, such as the existence of forces in the dark sector. New results on cluster scales provide a new important handle for constraining DM's interactions, its mass, and the mass of dark mediator particles. I discuss how self-interactions arise in particle physics models and complementarity with other types of dark matter searches.
