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(1) Presentation(s)


Mar. 09/01/2018 14:00 Grande Ourse, Bâtiment 13, Etage 1

KAHLHOEFER Felix (DESY-Hamburg / Aachen)
Phenomenology of self-interacting WIMPs

(LUPM/Interactions fondamentales, Astroparticules et Cosmologie)


The observed dark matter relic abundance and the idea of thermal freeze-out motivate dark matter particles with weak-scale interactions (so-called WIMPs). On the other hand, discrepancies between numerical simulations and observations on galactic scales prefer models in which dark matter particles have rather strong self-interactions. In my talk I will discuss how to combine these two classes of dark matter models by considering dark matter particles interacting via a new light mediator. I will introduce different types of mediators and discuss the relevant observational and experimental constraints. While the simplest realizations of this set-up are strongly constrained, a number of possible modifications open up a range of interesting possibilities.

Pour plus d'informations, merci de contacter Lavalle J.