First-year DESI BAO data are consistent with flat LambdaCDM and, when combined with CMB, show a 2.5-3.9 sigma preference for evolving dark energy (w0 > -1, wa < 0) that strengthens with certain supernova datasets.
Wang, The Self-Consistency of DESI Analysis and Comment on ”Does DESI 2024 Confirm ΛCDM?”, arXiv e-prints (2024) arXiv:2404.13833 [ 2404.13833]
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Joint lensing-kinematics analysis of nine CLASH clusters constrains chameleon gravity, yielding GR-consistent bounds for NFW and Hernquist profiles and |f_R| ≲ 2-5×10^{-5} for f(R) models.
DESI data hint that dark energy evolves (w0>−1, wa<0, phantom crossing) at 2.5–4.2σ, but the same expansion history can also be produced by interacting dark sectors, modified gravity, or non-cold dark matter.
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DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
First-year DESI BAO data are consistent with flat LambdaCDM and, when combined with CMB, show a 2.5-3.9 sigma preference for evolving dark energy (w0 > -1, wa < 0) that strengthens with certain supernova datasets.
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CLASH-VLT: The Fifth Force in Chameleon Gravity from Joint Lensing and Kinematics Cluster Mass Profiles
Joint lensing-kinematics analysis of nine CLASH clusters constrains chameleon gravity, yielding GR-consistent bounds for NFW and Hernquist profiles and |f_R| ≲ 2-5×10^{-5} for f(R) models.
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Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-$\Lambda$CDM Interpretations, and Tensions
DESI data hint that dark energy evolves (w0>−1, wa<0, phantom crossing) at 2.5–4.2σ, but the same expansion history can also be produced by interacting dark sectors, modified gravity, or non-cold dark matter.