Robustness Analysis and Hubble Tension

Abstract

The paper explores the application of robustness analysis to the Hubble tension —the discrepancy between measurements of the Hubble constant from the cosmic distance ladder and the early universe. I argue that, depending on how robustness analysis is defined and applied, one might conclude that the tension stems either from unaccounted systematics or from new physics. Ultimately, I suggest that caution and a more refined robustness analysis are needed when comparing results from large-scale experiments and scientific collaborations in cosmology.

Author's Profile

Marco Forgione
University of Milan

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Added to PP
2024-03-28

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