2022
DOI: 10.48550/arxiv.2203.06177
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BAO scale inference from biased tracers using the EFT likelihood

Ivana Babić,
Fabian Schmidt,
Beatriz Tucci

Abstract: The physical scale corresponding to baryon acoustic oscillations (BAO), the size of the sound horizon at recombination, is precisely determined by CMB experiments. Measuring the apparent size of the BAO scale imprinted in the clustering of galaxies gives us a direct estimate of the angular-diameter distance and the Hubble parameter as a function of redshift. The BAO feature is damped by non-linear structure formation, which reduces the precision with which we can infer the BAO scale from standard galaxy cluste… Show more

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