Out-of-equilibrium axion dark matter modifies late-time expansion to reconcile SH0ES H0 ≈ 73 km/s/Mpc with DESI BAO data while recovering standard behavior at higher redshifts.
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Gravitationally induced particle creation models fit cosmological data as well as ΛCDM and reduce the Hubble tension from 4.3σ to 2.4–3σ.
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Revisiting the Matter Creation Process: Observational Constraints on Gravitationally Induced Dark Energy and the Hubble Tension
Gravitationally induced particle creation models fit cosmological data as well as ΛCDM and reduce the Hubble tension from 4.3σ to 2.4–3σ.