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- W4327705466 abstract "Exploring the realm of Dark Matter research, Light DM, which has a mass in the range of 1 MeV to 1 GeV, is a fascinating topic both theoretically and experimentally. We assume that the light dark matter is composed of complex scalars and produced from semi-annihilation, which is close to the scale of the MeV Gamma-ray satellite, allowing us to explore the implications of this hypothesis. The experimental data we used to constrain the scenario is from five different sources: the COMPTEL, EGRET, INTEGRAL, Fermi Gamma-ray Space Telescope, and the e-ASTROGAM future reach. We use the analytical formula to measure the X-ray spectra allowing us to determine the annihilation cross-section bounds from $10^{-28}mathrm{cm}^3/mathrm{s}$ to $10^{-22}mathrm{cm}^3/mathrm{s}$ for different combinations of dark matter and mediator masses. We found that the MeV gamma-ray provides valuable insight into the structure of the semi-annihilation dark matter, where EGRET contributes to the stringent constraint to the semi-annihilation, and the e-ASTROGAM future reach could probe the whole parameter space of the model." @default.
- W4327705466 created "2023-03-18" @default.
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- W4327705466 date "2023-05-01" @default.
- W4327705466 modified "2023-10-07" @default.
- W4327705466 title "MeV gamma-ray constraints for light dark matter from semi-annihilation" @default.
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- W4327705466 doi "https://doi.org/10.1016/j.physletb.2023.137853" @default.
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