University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Friday, January 26th 2018
Speaker: Jorn Kersten (Bergen U., Norway)
Subject: Late Kinetic Decoupling and Self-Interacting Dark Matter

The cosmological LambdaCDM standard model faces some problems related to the formation of structures at relatively small scales, most notably the missing-satellites problem, the cusp-core problem, the too-big-to-fail problem, and the diversity problem. I will advertise late kinetic decoupling of dark matter as a mechanism to address the missing satellites problem. Afterwards, I will describe a model involving self-interacting dark matter and sterile neutrinos that can tackle all four small-scale problems.

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