Light neutrinophilic WIMP in the $U(1{)}_{\mathrm{B}-\mathrm{L}+\mathrm{xY}}$ model

Tatsuya Aonashi, Shigeki Matsumoto, Yu Watanabe +1

Sub-GeV dark matter is an appealing thermal target because it can still be produced via the standard freeze-out mechanism; at such low masses, achieving freeze-out naturally points…