{"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/peeking-into-the-next-decade-in-large-scale","title":"Peeking into the next decade in Large-Scale Structure Cosmology with its Effective Field Theory","arxiv_id":"2307.04992","date":"2023-07-11","proceeding":null,"authors":["Diogo Bragança","Yaniv Donath","Leonardo Senatore","Henry Zheng"],"abstract":"After the successful full-shape analyses of BOSS data using the Effective Field Theory of Large-Scale Structure, we investigate what upcoming galaxy surveys might achieve. We introduce a ``perturbativity prior\" that ensures that loop terms are as large as theoretically expected, which is effective in the case of a large number of EFT parameters. After validating our technique by comparison with already-performed analyses of BOSS data, we provide Fisher forecasts using the one-loop prediction for power spectrum and bispectrum for two benchmark surveys: DESI and MegaMapper. We find overall great improvements on the cosmological parameters. In particular, we find that MegaMapper (DESI) should obtain at least a 12$\\sigma$ ($2\\sigma$) evidence for non-vanishing neutrino masses, bound the curvature $\\Omega_k$ to 0.0012 (0.012), and primordial inflationary non-Gaussianities as follows: $f_{\\text{NL}}^{\\text{loc.}}$ to $\\pm 0.26$ (3.3), $f_{\\text{NL}}^{\\text{eq.}}$ to $\\pm16$ (92), $f_{\\text{NL}}^{\\text{orth.}}$ to $\\pm 4.2$ (27). Such measurements would provide much insight on the theory of Inflation. We investigate the limiting factor of shot noise and ignorance of the EFT parameters.","url_abs":"https://arxiv.org/abs/2307.04992v1","url_pdf":"https://arxiv.org/pdf/2307.04992v1.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":"peeking-into-the-next-decade-in-large-scale","repo_url":"https://github.com/ydonath/eftoflssfisher","is_official":1,"mentioned_in_paper":1,"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}