Exploring semi-relativistic $p$-wave dark matter annihilation in minimal Higgs portal near supermassive black hole

Chih-Ting Lu, Xiao-Yi Luo, Zi-Qing Xia

We conduct a comprehensive analysis of potential annihilation processes of light dark matter (DM) in minimal Higgs portal models near supermassive black hole (Sgr A${}^{\star }$) in t…