Bremsstrahlung signatures of dark matter annihilation in the Sun

Keita Fukushima, Yu Gao, Jason Kumar +1

The nonrelativistic annihilation of Majorana dark matter in the Sun to a pair of light fermions is chirality-suppressed. Annihilation to 3-body final states ${\ell }^{+}{f}^{-}V$, where $V=…