Abstract
A simple and minimal extension of the standard cosmological model in which dark matter experiences an additional long-range scalar interaction is demonstrated to alleviate the long-lasting Hubble tension while primordial nucleosynthesis predictions remain unaffected and passing by construction all current local tests of general relativity. The theoretical formulation of this model and its comparison to astrophysical observations are presented to prove its ability to fit existing data and potentially resolve the tension.
- Received 20 December 2023
- Accepted 9 April 2024
DOI:https://doi.org/10.1103/PhysRevLett.132.191001
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