Search for boosted dark matter at neutrino experiments

We investigate phenomenology of a two-component Dark Matter (DM) scenario, where one of the two components is secluded from the Standard Model (SM) while the other has non-negligible interaction with SM via dark boson exchange. We focus on the large mass difference between the two candidates, in which case annihilation of two heavier particles into two lighter ones leads to a striking signature in a terrestrial large volume neutrino experiment due to their large Lorentz boost. We examine detection prospects of such a boosted dark matter (BDM) originating from the center of the Sun at different neutrino experiments such as Super-K and Deep Underground Neutrino Experiments (DUNE). We include self interaction of DM to reconcile discrepancy between simulation and observation of small scale structure of the universe.