SIMP dark matter and its cosmic abundances
Department of Physics, Chung-Ang University, Seoul 06974, Korea.
2 Center for Theoretical Physics of the Universe, Institute for Basic Science, 34051 Daejeon, Korea.
Published online: 9 January 2018
We give a review on the thermal average of the annihilation cross-sections for 3 → 2 and general higher-order processes. Thermal average of higher order annihilations highly depend on the velocity of dark matter, especially, for the case with resonance poles. We show such examples for scalar dark matter in gauged Z3 models.
© The Authors, published by EDP Sciences, 2018
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