DE Models with Combined H 0 · r d from BAO and CMB Dataset and Friends.

It has been theorized that dynamical dark energy (DDE) could be a possible solution to Hubble tension. To avoid degeneracy between Hubble parameter H 0 and sound horizon scale r d , in this article, we use their multiplication as one parameter c / H 0 r d , and we use it to infer cosmological parameters for 6 models— Λ CDM and 5 DDE parametrizations—the Chevallier–Polarski–Linder (CPL), the Barboza–Alcaniz (BA), the low correlation (LC), the Jassal–Bagla–Padmanabhan (JBP) and the Feng–Shen–Li-Li models. We choose a dataset that treats this combination as one parameter, which includes the baryon acoustic oscillation (BAO) data 0.11 ≤ z ≤ 2.40 and additional points from the cosmic microwave background (CMB) peaks ( z ≃ 1090 ). To them, we add the marginalized Pantheon dataset and GRB dataset. We see that the tension is moved from H 0 and r d to c / H 0 r d and Ω m . There is only one model that satisfies the Planck 2018 constraints on both parameters, and this is LC with a huge error. The rest cannot fit into both constraints. Λ CDM is preferred, with respect to the statistical measures. [ABSTRACT FROM AUTHOR]