Boosted Dark Matter enhanced with self-interactions

by Mr Gopolang Mohlabeng (University of Kansas)

Tuesday 7 Jul 2015, 13:00 → 14:00 Europe/Brussels

E/3rd floor-E.349 - Seminar room (E.349) (Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve))

We explore the detection prospects of a non-standard dark sector in the context of boosted dark matter, which could be detected as visible Cherenkov light in large volume neutrino detectors. In models with multiple candidates, self-interaction of dark matter particles is naturally utilized in the assisted freeze-out mechanism and is corroborated by various cosmological studies such as N-body simulations of structure formation. We show that self-interaction of the secluded (heavier) dark matter greatly enhances the capture rate in the Sun and results in promising signals at current and future experiments. We perform a detailed analysis of the boosted dark matter events for Super-K, Hyper-K and PINGU.