{
  "abstract": "We investigate superluminal Lorentz invariance violation (LIV) in the neutrino sector using cosmogenic neutrino fluxes generated with ultrahigh-energy cosmic-ray propagation models. Standard fluxes are calculated with \\texttt{CRPropa 3.2} and subsequently modified using a prescription based on LIV-induced neutrino splitting. Superluminal LIV suppresses the flux at the highest energies while producing an enhancement at PeV - EeV energies. We use the KM3-230213A event as a benchmark to evaluate the sensitivity of current observations to these spectral modifications. Although the available statistics do not allow a formal constraint, the predicted fluxes are particularly sensitive to coefficients in the range $10^{-24} \\mathrm{eV}^{-1} \\lesssim δ_{ν,1} \\lesssim 10^{-22}\\,\\mathrm{eV}^{-1}$, with the results strongly depending on the assumed cosmic-ray source properties. Intermediate coefficients can enhance the expected event rate within the reconstructed energy range of KM3-230213A, whereas larger coefficients may overproduce neutrinos in energy intervals constrained by IceCube and the Pierre Auger Observatory. These results identify a region of observational sensitivity to LIV and provide testable predictions for future neutrino telescopes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12120",
  "author_total": 3,
  "authors": [
    {
      "name": "Rodrigo Sasse"
    },
    {
      "name": "Rodrigo Guedes Lang"
    },
    {
      "name": "Rita de Cássia dos Anjos"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ebhe21kt62sed.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12120",
  "fulltext_url": null,
  "id": "ebhe21kt62sed",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12120",
  "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.HE"
    ],
    [
      "arxiv",
      "hep-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.12120",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ebhe21kt62sed.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12120",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12120"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Probing Lorentz Invariance Violation in Cosmogenic Neutrino Propagation with KM3-230213A",
  "title_text": "Probing Lorentz Invariance Violation in Cosmogenic Neutrino Propagation with KM3-230213A",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/ebhe21kt62sed",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1733",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}