{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/efficient-cosmological-analysis-of-the-sdss","title":"Efficient Cosmological Analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure","arxiv_id":"1909.07951","date":"2019-09-17","proceeding":null,"authors":["Thomas Colas","Guido D'Amico","Leonardo Senatore","Pierre Zhang","Florian Beutler"],"abstract":"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 $\\Lambda$CDM 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, $\\Omega_b h^2$, 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, $A_s$, the abundance of matter, $\\Omega_m$, the Hubble parameter, $H_0$, and the tilt of the primordial power spectrum, $n_s$, to about $19\\%$, $5.7\\%$, $2.2\\%$ and $7.3\\%$ respectively, obtaining $\\ln ( 10^{10} A_s) =2.91\\pm 0.19$, $\\Omega_m=0.314\\pm 0.018$, $H_0=68.7\\pm 1.5$ km/(s Mpc) and $n_s=0.979\\pm 0.071$ at $68\\%$ confidence level. A public code is released with this preprint.","url_abs":"https://arxiv.org/abs/1909.07951v2","url_pdf":"https://arxiv.org/pdf/1909.07951v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"efficient-cosmological-analysis-of-the-sdss","repo_url":"https://github.com/pierrexyz/cbird","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"framework":"none","reach":null},{"paper_slug":"efficient-cosmological-analysis-of-the-sdss","repo_url":"https://github.com/billwright93/pybird","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"efficient-cosmological-analysis-of-the-sdss","repo_url":"https://github.com/cullanhowlett/pybird","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}