Speaker
Description
We develop a systematic approach for analyzing any dark matter (DM) model that produces boosted dark matter (BDM) through semi-annihilation. We emphasize three points. First, any BDM analysis must be grounded on the correct relic density. Second, any realistic BDM model that aims to be detectable also contains an annihilation channel, which plays a significant role in BDM detection. Finally, the detection of the semi-annihilation by-product must be investigated.
As a demonstration, we apply our approach to an electrophilic, single-component $Z_3$ fermionic DM model. We find that this model is severely constrained by both model-independent and model-specific experimental bounds, and that the BDM direct-detection rate is unobservably small and is everywhere overwhelmed by the detectability of the neutrino by-product.