H0 tension in the spatially flat ΛCDM model is reevaluated by employing three sets of non-Planck CMB data, namely WMAP, WMAP+ACT, and WMAP+SPT, in conjunction with DESI BAO data and non-DESI BAO datasets including 6dFGS, SDSS DR7, and SDSS DR16. Our analysis yields H0=68.86±0.68kms−1Mpc−1 with WMAP+DESI BAO, H0=68.72±0.51kms−1Mpc−1 with WMAP+ACT+DESI BAO, and H0=68.62±0.52kms−1Mpc−1 with WMAP+SPT+DESI BAO. The results of non-Planck CMB+DESI BAO exhibit a 3.4σ, 3.7σ, and 3.8σ tension with the SH0ES local measurement respectively which are around 1σ lower in significance for the Hubble tension compared to Planck CMB+DESI BAO. Moreover, by combining DESI BAO data+non-Planck CMB measurements, we obtain a more stringent constraint on the Hubble constant compared to non-DESI BAO data+non-Planck CMB data, as well as reducing the significance of the Hubble tension.
@article{arxiv.2411.14189,
title = {Reevaluating $H_0$ Tension with Non-Planck CMB and DESI BAO Joint Analysis},
author = {Ye-Huang Pang and Xue Zhang and Qing-Guo Huang},
journal= {arXiv preprint arXiv:2411.14189},
year = {2024}
}