[PDF] New physics in light of the H0 tension: An alternative view | Semantic Scholar
@article{Vagnozzi2019NewPI,
title={New physics in light of the
H0
tension: An alternative view},
author={Sunny Vagnozzi},
journal={Physical Review D},
year={2019},
volume={102},
pages={023518},
url={https://api.semanticscholar.org/CorpusID:197430820}
}The strong discrepancy between local and early-time (inverse distance ladder) estimates of the Hubble constant H0 could be pointing towards new physics beyond the concordance ΛCDM model. Several attempts to address this tension through new physics rely on extended cosmological models, featuring extra free parameters beyond the six ΛCDM parameters. However, marginalizing over additional parameters has the effect of broadening the uncertainties on the inferred parameters (including H0), and it is…