Fitting four wCDM dark energy parameterizations to Planck 2020, DESI, and late-time data still favors ΛCDM, with newer data giving tighter constraints.
The primary focus is on the estimation of H0, as influenced by the underlying cosmological models driven by different dark energy parameterisations
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Testing Planck 2020 and DESI data on wCDM Models
Fitting four wCDM dark energy parameterizations to Planck 2020, DESI, and late-time data still favors ΛCDM, with newer data giving tighter constraints.