The cosmological analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure

By Guido D'Amico, J. Gleyzes, N. Kokron, K. Markovič, L. Senatore, Pierre Zhang, F. Beutler, H. Gil-Marín. Journal of Cosmology and Astroparticle Physics, 2019

371 citations recorded by the source corpus.

The Effective Field Theory of Large-Scale Structure is a formalism that allows us to predict the clustering of Cosmological Large-Scale Structure in the mildly non-linear regime in an accurate and reliable way. After validating our technique against several sets of numerical simulations, we perform the analysis for the cosmological parameters of the DR12 BOSS data. We assume ΛCDM, a fixed value of the baryon/dark-matter ratio, Ωb/Ωc, and of the tilt of the primordial power spectrum, ns, and no significant input from numerical simulations. By using the one-loop power spectrum multipoles, we measure the primordial amplitude of the power spectrum, As, the abundance of matter, Ωm, and the Hubble parameter, H0, {to about 13%, 3.2% and 3.2% respectively, obtaining ln (1010As)=2.72± 0.13, 0Ωm=0.309± 0.01, H0=68.5± 2.2 km/(s Mpc) at 68% confidence level. If we then add a CMB prior on the sound horizon, the error bar on H0 is reduced to 1.6%.} These results are a substantial qualitative and quantitative improvement with respect to former analyses, and suggest that the EFTofLSS is a powerful instrument to extract cosmological information from Large-Scale Structure.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/0c0f4a36ef5b7cb95e021a02a08b3011d31df4e3

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In Astronomy and Astrophysics

1. Mikhail Ivanov
2. M. Simonovi'c
3. Tanvi Karwal
4. Tristan L. Smith
5. V. Poulin
6. M. Zaldarriaga
7. L. Senatore
8. O. Philcox

In Instrumentation

1. Mikhail Ivanov
2. M. Simonovi'c
3. M. Zaldarriaga
4. Tanvi Karwal
5. Tristan L. Smith
6. V. Poulin
7. L. Senatore
8. Z. Vlah

Citations in the corpus

• Cosmological parameters from the BOSS galaxy power spectrum (2019, methodology): “We thank the authors of [92] for discussions and sharing with us their preliminary results.”
• The Ups and Downs of Early Dark Energy solutions to the Hubble tension: A review of models, hints and constraints circa 2023 (2023, background): “[236] Guido D’Amico, Jérôme Gleyzes, Nickolas Kokron, Dida Markovic, Leonardo Senatore, Pierre Zhang, Florian Beutler, and Héctor Gil-Maŕın, “The Cosmological Analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure,” JCAP 05, 005 (2020), arXiv:1909.”