Speaker
Kimberly Boddy
(University of Texas at Austin)
Description
While particle dark matter is often modeled or presented as being a single species of matter, it is possible that dark matter is a part of a larger dark sector that may contain additional dark particles and dark forces. Such a scenario gives rise to rich phenomenology and can have a significant impact on astrophysical and cosmological observables. Furthermore, if the dark sector is secluded from the visible sector, gravitational probes become the only means to study the nature dark matter. In this talk, I will discuss some of the observational signatures of minimal dark sectors that feature dark matter self-interactions through the exchange of a light mediator.