{
  "abstract": "Cosmic-ray antideuterons and antihelium-3 nuclei are promising probes of dark matter (DM). In light of potential detections of heavy antinuclei at AMS-02, we investigate a recently proposed scenario in which DM annihilates into color-singlet scalars carrying baryon and lepton number, which has been shown to enhance antideuteron and antihelium-3 fluxes relative to antiprotons. Accounting for Galactic propagation and detector sensitivities, we calculate the number of events predicted by our model for parameters that are compatible with the seven-year AMS-02 antiproton data. Broad regions of the DM-mediator mass plane result in observable antideuteron fluxes at AMS-02 and GAPS. While detecting antihelium-3 remains more challenging, potentially detectable fluxes can arise for light mediators and moderately light DM, and in general are enhanced relative to the standard WIMP predictions. Furthermore, we find antihelium-to-antideuteron event ratios of O(0.1), closer to those suggested by the reported AMS-02 candidate events than conventional WIMP predictions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03785",
  "author_total": 4,
  "authors": [
    {
      "name": "Mattia Di Mauro"
    },
    {
      "name": "Caleb Gemmell"
    },
    {
      "name": "Dan Hooper"
    },
    {
      "name": "Fabrizio Vassallo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fm9j868wx2fba.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03785",
  "fulltext_url": null,
  "id": "fm9j868wx2fba",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03785",
  "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"
    ],
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "hep-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.03785",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fm9j868wx2fba.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.03785",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03785"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Cosmic-Ray Signals from Dark Matter Annihilation into Scalars with Baryon Number",
  "title_text": "Cosmic-Ray Signals from Dark Matter Annihilation into Scalars with Baryon Number",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/fm9j868wx2fba",
  "venue": "arXiv",
  "versions": []
}