Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies
Date
2022Author
Abdalla, Elcio
Abellán, Guillermo Franco
Maartens, Roy
Metadata
Show full item recordAbstract
The standard Cold Dark Matter ( CDM) cosmological model provides a good description of a wide
range of astrophysical and cosmological data. However, there are a few big open questions that make the
standard model look like an approximation to a more realistic scenario yet to be found. In this paper,
we list a few important goals that need to be addressed in the next decade, taking into account the
current discordances between the different cosmological probes, such as the disagreement in the value
of the Hubble constant H0, the σ8–S8 tension, and other less statistically significant anomalies. While
these discordances can still be in part the result of systematic errors, their persistence after several years
of accurate analysis strongly hints at cracks in the standard cosmological scenario and the necessity for
new physics or generalisations beyond the standard model.