{
  "abstract": "We present new constraints on models of dark matter interacting with neutrino, based on high-resolution Lyman-$α$ forest data. We perform a suite of full hydrodynamical simulations of these models, spanning a range of interaction strengths and thermal histories. We train an emulator on the simulation results. A Monte Carlo Markov Chain analysis yields an upper limit on the interaction strength of $u_{νχ} \\leq1.5\\times10^{-8}$ (95% C.L.), which is the strongest direct bound to date on such interactions. Our results exclude previous hints of non-zero interactions presented in the literature. We furthermore compare our results to those obtained by mapping warm dark matter constraints to other models with suppressed small-scale structure, and find that these methods would overestimate the constraining power for this model.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.15020",
  "author_total": 5,
  "authors": [
    {
      "name": "Markus R. Mosbech"
    },
    {
      "name": "Olga Garcia-Gallego"
    },
    {
      "name": "Vid Iršič"
    },
    {
      "name": "Matteo Viel"
    },
    {
      "name": "Julien Lesgourgues"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d7dssnxkxy5g6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.15020",
  "fulltext_url": null,
  "id": "d7dssnxkxy5g6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.15020",
  "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",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7169592709",
  "pdf_url": "https://arxiv.org/pdf/2607.15020",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d7dssnxkxy5g6.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:58Z",
      "native_id": "2607.15020",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.15020"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "High resolution Lyman-α forest constraints on dark matter-neutrino scattering",
  "title_text": "High resolution Lyman-α forest constraints on dark matter-neutrino scattering",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/d7dssnxkxy5g6",
  "venue": "arXiv",
  "versions": []
}