{
  "abstract": "While there is ample evidence that the universe's expansion is accelerating, most of this evidence relies on assuming a shape of the relative expansion rate, $H(z)/H_0$, informed by a cosmological model or a kinematical approach. Model-independent analyses are common for supernova datasets but rarely applied to other data. In this work, we use uncalibrated baryon acoustic oscillations (BAO) from DESI DR2 for a model-independent test of acceleration, which makes no assumptions about the theory of gravity or the energy content of the universe. We test for cosmic acceleration with three model-independent statistics that rely purely on the measured Alcock-Paczyński parameter, the isotropic BAO, and the line-of-sight BAO, and do not require any reconstruction between redshift bins unlike previous analyses. Accounting for the look-elsewhere effect, among all statistics we find $2.4σ$ - $4.1σ$ evidence for cosmic acceleration within $0 \\leq z \\leq 0.934$ when assuming flatness; allowing for spatial curvature, $|Ω_k| \\leq 1$, at least two of the three statistics retain $2.4σ$ - $3.5σ$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.40785",
  "author_total": 3,
  "authors": [
    {
      "name": "Laura Herold"
    },
    {
      "name": "Graeme E. Addison"
    },
    {
      "name": "Adam G. Riess"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3c5yp7v8cnhvs.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.40785",
  "fulltext_url": null,
  "id": "3c5yp7v8cnhvs",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.40785",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.40785",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3c5yp7v8cnhvs.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.40785",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.40785"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    }
  ],
  "title": "Model-independent and reconstruction-free evidence for cosmic acceleration from DESI baryon acoustic oscillations",
  "title_text": "Model-independent and reconstruction-free evidence for cosmic acceleration from DESI baryon acoustic oscillations",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/3c5yp7v8cnhvs",
  "venue": "arXiv",
  "versions": []
}