{"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/limits-on-w-cdm-from-the-eftoflss-with-the","title":"Limits on $w$CDM from the EFTofLSS with the PyBird code","arxiv_id":"2003.07956","date":"2020-03-17","proceeding":null,"authors":["Guido D'Amico","Leonardo Senatore","Pierre Zhang"],"abstract":"We apply the Effective Field Theory of Large-Scale Structure to analyze the $w$CDM cosmological model. By using the full shape of the power spectrum and the BAO post-reconstruction measurements from BOSS, the Supernovae from Pantheon, and a prior from BBN, we set the competitive CMB-independent limit $w=-1.046_{-0.052}^{+0.055}$ at $68\\%$ C.L.. After adding the Planck CMB data, we find $w=-1.023_{-0.030}^{+0.033}$ at $68\\%$ C.L.. Our results are obtained using PyBird, a new, fast Python-based code which we make publicly available.","url_abs":"https://arxiv.org/abs/2003.07956v1","url_pdf":"https://arxiv.org/pdf/2003.07956v1.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":"limits-on-w-cdm-from-the-eftoflss-with-the","repo_url":"https://github.com/pierrexyz/pybird","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"limits-on-w-cdm-from-the-eftoflss-with-the","repo_url":"https://github.com/billwright93/pybird","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"limits-on-w-cdm-from-the-eftoflss-with-the","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}