Reshuffled strongly interacting massive particle dark matter

نویسندگان

چکیده

In this work, we reanalyze the multi-component strongly interacting massive particle (mSIMP) scenario using an effective operator approach. As in single-component SIMP case, total relic abundance of mSIMP dark matter (DM) is determined by coupling strengths 3→2 processes achieved a five-point operator. Intriguingly, notice that there irreducible 2→2 process induced corresponding interaction sector, which would reshuffle mass densities DM after chemical freeze-out. We dub as reshuffled (rSIMP). Given observation, then numerically solve coupled Boltzmann equations including and to get correct yields rSIMP DM. It turns out masses must be nearly degenerate for them contribute sizeable abundances. On other hand, also introduce operators bridge sector visible via vector portal coupling. Notably, find mechanism sensitive size self-interacting cross section.

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ژورنال

عنوان ژورنال: Physics of the Dark Universe

سال: 2022

ISSN: ['2212-6864']

DOI: https://doi.org/10.1016/j.dark.2022.101061