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arXiv · 2312.12493

Hubble tension as a window on the gravitation of the dark matter sector

Cyril Pitrou·Jean-Philippe Uzan
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Abstract

A simple and minimal extension of the standard cosmological $\Lambda$CDM model in which dark matter experiences an additional long-range scalar interaction is demonstrated to alleviate the long lasting Hubble-tension while letting primordial nucleosynthesis predictions unaffected and passing by construction all current local tests of general relativity. The theoretical formulation of this $\Lambda\beta$CDM model and its comparison to astrophysical observations are presented to prove its ability to fit existing data and potentially resolve the tension.

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Cyril Pitrou, Jean-Philippe Uzan. 2023-12-19. Hubble tension as a window on the gravitation of the dark matter sector. https://doi.org/10.1103/physrevlett.132.191001

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