Speaker
Dr
Camilo Alfredo Garcia Cely
(DESY)
Description
Self-interacting dark matter is a well-motivated solution to the core-vs-cusp and the too-big-to-fail problems of the ΛCDM model. In this context, a light particle mediating the self-interactions is typically invoked in order to achieve velocity-dependent effects. In this talk, I will argue that a light mediator is not the only possible way to do that. In particular, I will discuss two new ideas: dark matter scenarios with self-heating as well as dark matter resonant scattering.
Based on:
Phys.Rev.Lett. 122 (2019) no.7, 071103
JCAP 1807 (2018) no.07, 013
Primary author
Dr
Camilo Alfredo Garcia Cely
(DESY)
