Effect of Cosmic Neutrino Background on the Dark Matter Self-interaction via Neutrino force

Pawin Ittisamai, Chakrit Pongkitivanichkul, Muhammaddaniya Sutwilai +2

Neutrino-pair exchange induces a neutrino force that can drive dark matter (DM) self-interactions and impact small-scale structure formation. In the presence of the cosmic neutrino…