“…In many of these models, UV physics can destabilize the DM, leading to a decay to νν, which may dominate over other channels. These models have motivated numerous dedicated studies, mainly in the context of discovering heavy DM using neutrino line searches [24][25][26][27][28][29], and many neutrino experiments have hunted for DM signatures in their observations [30][31][32][33][34][35], so far yielding null results.…”