Hubble tension as a window on the gravitation of the dark matter sector: Exploration of a family of models
Open accessAbstract
A family of simple and minimal extensions of the standard cosmological $\mathrm{\ensuremath{\Lambda}}\mathrm{CDM}$ 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. This article describes their theoretical formulation and their implications for dark matter. Then, we investigate their cosmological signatures, both at the background and perturbation levels. A detailed comparison to astrophysical data is performed to discuss their ability to fit existing data. A thorough discussion of the complementarity of the low- and high-redshift data and on their constraining power highlights how these models improve the predictions of the $\mathrm{\ensuremath{\Lambda}}\mathrm{CDM}$ model whatever the combination of datasets used and why they can potentially resolve the Hubble tension. Being fully predictive in any environment, they pave the way to a better understanding of gravity in the dark matter sector.
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From a theoretical perspective, this opens the question of whether one can modify the dark matter gravity sector independently of the standard matter sector, in particular since such models have become candidates to a solution of the Hubble tension.
“From a theoretical perspective, this opens the question of whether one can modify the dark matter gravity sector independently of the standard matter sector, in particular for since such models have become candidates to a solution of the Hubble tension ( Pitrou and Uzan 2024; Uzan and Pitrou 2024).”
From Fundamental constants: from measurement to the universe, a window on gravitation and cosmology (2025) · cites this paper as Uzan and Pitrou 2024
As illustrated by Uzan and Pitrou (2024) on a scalar-tensor theory, neglecting the treatment of perturbations can lead to an error larger than a percent for CMB predictions compared to the full treatment, with same background evolution.
“As illustrated by Uzan and Pitrou (2024) on a scalar-tensor theory, neglecting the treatment of the perturbations can lead to an error larger than a percent for the CMB predictions compared to the full treatment, with same background evolution.”
From Fundamental constants: from measurement to the universe, a window on gravitation and cosmology (2025) · cites this paper as Uzan and Pitrou 2024
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References 120 · Cited by 9
Research works printed but not linked: 5
- A. Gómez-Valent, V. Pettorino, and L. Amendola, in 16th Marcel Grossmann Meeting on Recent Develop- ments in Theoretical and Experimental General Relativ- ity, Astrophysics and Relativistic Field Theories (2023). · DOI
- S. Bottaro, E. Castorina, M. Costa, D. Redigolo, and E. Salvioni, (2023), arXiv:2309.11496 [astro-ph.CO]. · arXiv
- P. Sikivie, Lect. Notes Phys. 741, 19 (2008), arXiv:astro-ph/0610440. · DOI
- P. Peter and J.-P. Uzan, Primordial Cosmology, Oxford Graduate Texts (Oxford University Press, 2013).
- C. Cartis, J. Fiala, B. Marteau, and L. Roberts, arXiv e-prints , arXiv:1804.00154 (2018), arXiv:1804.00154 [math.OC]. · DOI
- Authors
- Uzan, J.-P., & Pitrou, C.
- Affiliations
- Institut d'Astrophysique de Paris (FR)
- Corresponding author
- Uzan, Jean-Philippe
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2024-05-06
- Volume
- 109
- Issue
- 10
- Pages
- 103505
- ISSN
- 2470-0010 (ISSN-L)
- 2470-0029
- OpenAlex
- W4396669417
- Cited by
- 9
- References
- 120
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 4
- FWCI
- 1.69
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical review. D/Physical review. D. (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Keywords
- Hubble tension, dark matter, scalar interactions, modified gravity, big bang nucleosynthesis, cosmological perturbations, tests of general relativity
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