{
  "abstract": "The unified Bound Dark Energy--Bound Dark Matter (BDE-BDM) model derives both the dark energy and the whole of the dark matter from a single supersymmetric $SU(3)$ gauge group with $N_f=6$ flavors. Gauge-coupling unification predicts the scale at which it condenses, $\\Lc=34^{+16}_{-11}$~eV, before any cosmological data are used, so the dark-energy sector adds no parameter to those of \\LCDM\\ and the dark-matter sector adds only one. Fitting DESI DR2 BAO, Planck CMB, Planck+ACT DR6 CMB lensing, and three supernova compilations (PantheonPlus, Union3.1, DES-Dovekie) gives, for Union3.1, $\\Lc=43.67\\pm0.13$~eV, inside the predicted range: a high-energy prediction met by a late-time measurement. The equation of state evolves to $w_0=-0.9262\\pm0.0005$ and never crosses the phantom divide. Relative to \\LCDM\\ the model lowers the DESI BAO $χ^2$ by $2.95$--$3.67$ and the supernova $χ^2$ by $2.53$--$4.07$, recovering $57\\%$--$71\\%$ of the total reduction that \\wowa\\ obtains by fitting two dark-energy parameters to the same data, and reaching the lower BAO $χ^2$ of the two models for two of the three compilations. Its $Δ\\mathrm{DIC}$ against \\LCDM\\ is strong for every compilation, $-8.28$ to $-7.47$, varying by $0.81$ where that of \\wowa\\ varies by $4.8$. Because the dark-energy sector adds no parameter to those of \\LCDM, the likelihood gain survives the Occam penalty: $\\ln B=+4.09$, $+4.12$, and $+4.83$ against \\LCDM, where \\wowa\\ gives $-2.11$, $-0.26$, and $-0.56$. Among six models pairing a cosmological constant, the \\wowa\\ parametrization or bound dark energy with cold or bound dark matter, BDE-BDM has the largest Bayesian evidence.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.20716",
  "author_total": 2,
  "authors": [
    {
      "name": "Jose Agustin Lozano Torres"
    },
    {
      "name": "Axel de la Macorra"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/03a4wcg6ck4yd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.20716",
  "fulltext_url": null,
  "id": "03a4wcg6ck4yd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.20716",
  "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",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7222700977",
  "pdf_url": "https://arxiv.org/pdf/2610.20716",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/03a4wcg6ck4yd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.20716",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.20716"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    }
  ],
  "title": "The unified Bound Dark Energy--Bound Dark Matter model: theory and constraints from DESI DR2",
  "title_text": "The unified Bound Dark Energy--Bound Dark Matter model: theory and constraints from DESI DR2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/03a4wcg6ck4yd",
  "venue": "arXiv",
  "versions": []
}