Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 10, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2019/10/047
Keywords
cosmology of theories beyond the SM; dark matter theory; physics of the early universe
Funding
- Spanish MINECO [FPA2017-84543-P]
- European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant [674896, 690575]
- Universidad Antonio Narino [2017239, 2018204, 2019101, 2019248]
- FONDECYT [1161150]
- [CONICYT-PCHA/Doctorado Nacional/2018-21180309]
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Once dark matter has been discovered and its particle physics properties have been determined, a crucial question rises concerning how it was produced in the early Universe. If its thermally averaged annihilation cross section is in the ballpark of few x 10(-26) cm(3)/s, the WIMP mechanism in the standard cosmological scenario (i.e. radiation dominated Universe) will be highly favored. If this is not the case one can either consider an alternative production mechanism, or a non-standard cosmology. Here we study the dark matter production in scenarios with a non-standard expansion history. Additionally, we reconstruct the possible non-standard cosmologies that could make the WIMP mechanism viable.
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