{
  "abstract": "We study neutrino masses in a six-dimensional framework with two compact dark dimensions. In the conventional flat-bulk realization, the sterile-neutrino zero mode is strongly volume suppressed, so a fundamental scale near $10~\\mathrm{TeV}$ requires a large higher-dimensional Yukawa coupling to reproduce the observed neutrino masses, while the accompanying two-dimensional Kaluza--Klein tower is strongly constrained by oscillation data. We show that localizing the sterile-neutrino wave function near the Standard-Model brane substantially alleviates both effects. Using a Gaussian localizer, realistic Dirac neutrino masses are obtained with perturbative, order-one Yukawa couplings, while the brane-visible sterile excitations form a shell spectrum with $M_s^2=8μ^2 s$, and squared active--sterile mixings that decrease as $1/s$. The localization scale therefore separates the experimentally relevant sterile-neutrino spectrum from the gravitational compactification scale. We derive the resulting three-flavour structure and study its phenomenological consequences for reactor oscillations and tritium beta decay, including comparisons with current flat-LED and KATRIN constraints.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30526",
  "author_total": 2,
  "authors": [
    {
      "name": "Waqas Ahmed"
    },
    {
      "name": "George K. Leontaris"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2f73xmdmnk57a.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30526",
  "fulltext_url": null,
  "id": "2f73xmdmnk57a",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30526",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7223339875",
  "pdf_url": "https://arxiv.org/pdf/2610.30526",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2f73xmdmnk57a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.30526",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30526"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Localized Neutrinos in Two Dark Dimensions",
  "title_text": "Localized Neutrinos in Two Dark Dimensions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/2f73xmdmnk57a",
  "venue": "arXiv",
  "versions": []
}