{
  "abstract": "The effective field theory of large-scale structure (EFTofLSS) program for spectroscopic galaxy surveys has been remarkably successful for cosmological inference from the galaxy power spectrum and bispectrum. However, a full-shape cosmological analysis including the galaxy trispectrum has not yet been performed. In this work, we develop the tree-level EFTofLSS model of the galaxy trispectrum, including all relevant ingredients: galaxy bias, stochasticity, infrared resummation, Fingers-of-God (FoG) counterterms, Alcock-Paczynski distortions, binning effects, and covariance. We validate the model by performing cosmological inference using the one-loop galaxy power spectrum, tree-level bispectrum, and tree-level trispectrum measured from dark-matter halos in 25 AbacusSummit $N$-body simulations, whose large effective volume ($V=200h^{-3}\\text{Gpc}^3$) allows us to test the precision of our model and determine scale cuts in both real-space and redshift-space. We also study the cosmological information content of the galaxy trispectrum in a DESI-like volume, finding that its inclusion can improve constraints e.g., on $ω_{\\rm cdm}$ by up to $15\\%$. We further find that the maximum scale cut can be extended to $k_{\\max}=0.12h\\mathrm{Mpc}^{-1}$ depending on the tracer, thanks to our improved treatment of FoG effects. This provides a path towards using the three-dimensional large-scale structure to constrain new-physics scenarios with distinctive signatures in the trispectrum, in particular primordial non-Gaussianity.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.08908",
  "author_total": 2,
  "authors": [
    {
      "name": "Beatriz Tucci"
    },
    {
      "name": "Oliver H. E. Philcox"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fw026x9xanjfx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.08908",
  "fulltext_url": null,
  "id": "fw026x9xanjfx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.08908",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7221061949",
  "pdf_url": "https://arxiv.org/pdf/2610.08908",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fw026x9xanjfx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:37Z",
      "native_id": "2610.08908",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.08908"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    }
  ],
  "title": "Full-Shape Analysis of the Redshift-Space Galaxy Trispectrum in the EFTofLSS",
  "title_text": "Full-Shape Analysis of the Redshift-Space Galaxy Trispectrum in the EFTofLSS",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:37Z",
  "url": "https://research.draconitic.com/paper/fw026x9xanjfx",
  "venue": "arXiv",
  "versions": []
}