paper

Role of the Hubble Scale in the Weak Lensing vs. CMB Tension

arXiv:2209.12997 · doi:10.1103/PhysRevD.107.083532

Abstract

We explore a re-parameterization of the lensing amplitude tension between weak lensing (WL) and cosmic microwave background (CMB) data and its implications for a joint resolution with the Hubble tension. Specifically, we focus on the lensing amplitude over a scale of 12 Mpc in absolute distance units using a derived parameter and show its constraints from recent surveys in comparison with Planck 2018. In WL alone, we find that the absolute distance convention correlates with . Accounting for this correlation in the 3D space reproduces the usual levels of tension inferred from . Additionally, we derive scaling relations in the and planes that are allowed by CDM and extrapolate target scalings needed to solve the and lensing-amplitude tensions jointly in a hypothetical beyond-CDM model. As a test example, we quantify how the early dark energy scenario compares with these target scalings. Useful fitting formulae for and as a function of other cosmological parameters in CDM are provided, with 1% precision.

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