Gamma-ray Signal from $Z_{N\ge 3}$ Dark Matter-Companion Models

Jun Guo, Zhaofeng Kang, Ji-Gang Zhao

In Ref.~\cite{Guo:2021rre}, we proposed to replace the final dark matter (DM) particle in the semi-annihilation mode $\mathrm{DM}+\mathrm{DM}\to \mathrm{antiDM}+\mathrm{Higgs}\mathrm{boson}$ with its $Z_{N\ge 3}$ compan…