Hints of the $H_0-r_d$ tension in uncorrelated Baryon Acoustic Oscillations dataset

TL;DR

This paper investigates potential hints of the H_0-r_d tension using uncorrelated BAO datasets combined with other cosmological measurements, analyzing deviations from the standard Lambda-CDM model.

Contribution

It provides an analysis of BAO data in conjunction with other cosmological observations to explore tensions in H_0 and r_d estimates beyond Lambda-CDM.

Findings

Hints of tension in H_0 and r_d estimates.

Constraints on curvature and dark energy equation of state.

Comparison with recent literature results.

Abstract

Baryon Acoustic Oscillations (BAO) datasets use very precise measurements of the spatial distribution of large-scale structures as a distance ladder to help constrain cosmological parameters. In a recent article \cite{Benisty:2020otr}, we combined 17 uncorrelated BAO measurements in the effective redshift range $0.106 \le z \le 2.36$ with the Cosmic Chronometers data, the Pantheon Type Ia supernova and the Hubble Diagram of Gamma Ray Bursts and Quasars to obtain that the $\Lambda$CDM model fit infers for the Hubble constant: $69.85 \pm 1.27km/sec/Mpc$ and for the sound horizon distance: $146.1 \pm 2.15Mpc$. Beyond the $\Lambda$CDM model we test $\Omega_k$CDM and wCDM and we get $\Omega_k = -0.076 \pm 0.012$, $w = -0.989 \pm 0.049$ accordingly. In this proceeding we present elaborate on our findings and we compare them to other recent results in the literature.