{
  "abstract": "Recent IceCube observations point to the ultra-high energy neutrino flux exhibiting a very soft spectral nature beyond tens of TeV, which is unexpected from the standard cosmic-ray neutrino connection. As a potential explanation for this behaviour, we investigate neutrino self-interactions in an extra-dimensional $ {U(1)}_{L_μ-L_τ} $ gauge theory, where symmetry breaking leads to a tower of Kaluza-Klein gauge bosons in compactified four dimensions. These multiple gauge bosons may enhance the attenuation of astrophysical neutrinos as they propagate in the C$ν$B medium. Unlike single-mediator scenarios, for example, which arise from broken $ {U(1)}_{L_μ- L_τ} $ gauge symmetries in four dimensions, the presence of a Kaluza-Klein tower of mediators produces multiple closely spaced resonances whose interference gives rise to a rich energy-dependent behaviour of the scattering cross-section over a vast range of incident neutrino energies. Alongside $s$-channel resonances, off-resonant $t$- and $u$-channel contributions also become important. We explore the possibility that repeated resonant scattering between astrophysical neutrinos and those in the C$ν$B, mediated by these new multiple gauge bosons may increasingly attenuate the former at higher energies, thereby addressing the possibility of softening its spectral nature within the consideration of a single power law.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.16139",
  "author_total": 3,
  "authors": [
    {
      "name": "Atri Bhattacharya"
    },
    {
      "name": "Ayushi Kaushik"
    },
    {
      "name": "Kenji Nishiwaki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7187tgg6dk4xb.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.16139",
  "fulltext_url": null,
  "id": "7187tgg6dk4xb",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.16139",
  "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.HE"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Astrophysics and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7213392000",
  "pdf_url": "https://arxiv.org/pdf/2609.16139",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7187tgg6dk4xb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2609.16139",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.16139"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Multiple-Mediator-Affected Ultra-High-Energy Neutrino Attenuation: Hints for 5D ${U(1)}_{L_μ- L_τ}$ in IceCube",
  "title_text": "Multiple-Mediator-Affected Ultra-High-Energy Neutrino Attenuation: Hints for 5D U(1)_L_μ− L_τ in IceCube",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/7187tgg6dk4xb",
  "venue": "arXiv",
  "versions": []
}