Testing f(R)-gravity models with DESI DR2 2025-BAO and other cosmological data

2025/04/07 by Plaza, Francisco, Kraiselburd, Lucila · 3 citations
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)

paper · doi:10.48550/arxiv.2504.05432

Abstract

Motivated by the new BAO data and the significant results recently published by the DESI DR2 Collaboration, this study presents a Markov Chain Monte Carlo (MCMC) analysis of all currently viable f (R) models using this new dataset, and compares its constraining power with that of previous BAO compilations. A corresponding Bayesian model comparison is then carried out. The results reveal, for the first time, very strong statistical evidence in favor of f (R) models over the standard ΛCDM scenario. The analysis also incorporates data from cosmic chronometers and the latest Pantheon++SH0ES supernovae compilation.

Cited by

• Theory space and stability analysis of General Relativistic cosmological solutions in modified gravity
• Challenging ΛCDM with Higher-Order GUP Corrections
• Topological defects as effective dynamical dark energy

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