# Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing

@article{Baxter2020DeterminingTH, title={Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing}, author={Eric J. Baxter and Blake D. Sherwin}, journal={arXiv: Cosmology and Nongalactic Astrophysics}, year={2020} }

Measurements of the Hubble constant, $H_0$, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the CMB and other high redshift datasets if a flat $\Lambda$CDM cosmological model is assumed. One of the few promising theoretical resolutions of this tension is to invoke new physics that changes the sound horizon scale in the early universe; this can bring CMB and BAO constraints on $H_0$ into better agreement with local measurements. In…

## 20 Citations

### Determining the Hubble constant without the sound horizon: Measurements from galaxy surveys

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Gerrit S. Farren, Oliver H. E. Philcox, 3 and Blake D. Sherwin 4 Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 0WA, UK Department of Astrophysical…

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