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

By Thomas Colas, Guido D'Amico, L. Senatore, Pierre Zhang, F. Beutler. Journal of Cosmology and Astroparticle Physics, 2019

154 citations recorded by the source corpus.

The precision of the cosmological data allows us to accurately approximate the predictions for cosmological observables by Taylor expanding up to a low order the dependence on the cosmological parameters around a reference cosmology. By applying this observation to the redshift-space one-loop galaxy power spectrum of the Effective Field Theory of Large-Scale Structure, we analyze the BOSS DR12 data by scanning over all the parameters of ΛCDM cosmology with massive neutrinos. We impose several sets of priors, the widest of which is just a Big Bang Nucleosynthesis prior on the current fractional energy density of baryons, Ωb h2, and a bound on the sum of neutrino masses to be less than 0.9 eV. In this case we measure the primordial amplitude of the power spectrum, As, the abundance of matter, Ωm, the Hubble parameter, H0, and the tilt of the primordial power spectrum, ns, to about 19%, 5.7%, 2.2% and 7.3% respectively, obtaining ln (1010As)=2.91± 0.19, Ωm=0.314± 0.018, H0=68.7± 1.5 km/(s Mpc) and ns=0.979± 0.071 at 68% confidence level. A public code is released with this preprint.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b4e0fc2ee8ef701fe829f25d55e7efd155b1597d

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Citations in the corpus

The Ups and Downs of Early Dark Energy solutions to the Hubble tension: A review of models, hints and constraints circa 2023 (2023, background): “[238] Thomas Colas, Guido D’amico, Leonardo Senatore, Pierre Zhang, and Florian Beutler, “Efficient Cosmological Analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure,” JCAP 06, 001 (2020), arXiv:1909.”
Combining full-shape and BAO analyses of galaxy power spectra: a 1.6% CMB-independent constraint on H0 (2020, background): “Previous analyses [53, 55] have shown however, that only weak constraints are possible from BOSS, ( ∑ mν .”
The cosmological analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure (2019, methodology): “An analysis of the neutrino masses in BOSS data goes beyond the scope of the current paper, and we leave it to future work [73].”