Snowmass2021 - Letter of interest cosmology intertwined II: The hubble constant tension
Document Type
Article
Publication Date
9-2021
Department
Department of Physics
Abstract
The current cosmological probes have provided a fantastic confirmation of the standard Λ Cold Dark Matter cosmological model, which has been constrained with unprecedented accuracy. However, with the increase of the experimental sensitivity, a few statistically significant tensions between different independent cosmological datasets emerged. While these tensions can be in part the result of systematic errors, the persistence after several years of accurate analysis strongly hints at cracks in the standard cosmological scenario and the need for new physics. In this Letter of Interest we will focus on the 4.4σ tension between the Planck estimate of the Hubble constant H0 and the SH0ES collaboration measurements. After showing the H0 evaluations made from different teams using different methods and geometric calibrations, we will list a few interesting models of new physics that could solve this tension and discuss how the next decade's experiments will be crucial.
Publication Title
Astroparticle Physics
Recommended Citation
Di Valentino, E.,
Anchordoqui, L.,
Akarsu, Ö.,
Ali-Haimoud, Y.,
Amendola, L.,
Arendse, N.,
Asgari, M.,
Ballardini, M.,
Basilakos, S.,
Battistelli, E.,
Benetti, M.,
Birrer, S.,
Bouchet, F.,
Bruni, M.,
Calabrese, E.,
Camarena, D.,
Capozziello, S.,
Chen, A.,
Chluba, J.,
Chudaykin, A.,
Colgáin, E.,
Cyr-Racine, F.,
de Bernardis, P.,
de Cruz Pérez, J.,
Delabrouille, J.,
Dunkley, J.,
Escamilla-Rivera, C.,
Ferté, A.,
Finelli, F.,
Freedman, W.,
Frusciante, N.,
&
Giusarma, E.
(2021).
Snowmass2021 - Letter of interest cosmology intertwined II: The hubble constant tension.
Astroparticle Physics,
131.
http://doi.org/10.1016/j.astropartphys.2021.102605
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/15257