{
  "abstract": "We investigate the possibility to determine the Majorana nature of the heavy Majorana neutrinos present in the low-scale type I seesaw mechanism of neutrino mass generation in experiments at $e^+ \\text{-} e^-$ and $μ^+ \\text{-} μ^-$ colliders. This is done on the examples of two specific symmetry-protected seesaw scenarios with two right-handed (RH) singlet neutrinos and one seesaw realization with three RH neutrinos. We use the forward-backward symmetry in the angular distribution of the heavy neutral leptons produced in the $e^+ \\text{-} e^-$ and $μ^+ \\text{-} μ^-$ collisions as an indicator of their Majorana nature. Our results indicate that the experiments at FCCee during its first phase of operation have a remarkable potential not only to discover the heavy neutral leptons associated with the type I seesaw mechanism if they have masses smaller than the $Z^0$-boson mass, but also to probe and provide evidence for their Majorana nature.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.21886",
  "author_total": 2,
  "authors": [
    {
      "name": "Takuya Okawa"
    },
    {
      "name": "S. T. Petcov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e7e5jn6vch3rw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.21886",
  "fulltext_url": null,
  "id": "e7e5jn6vch3rw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.21886",
  "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",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7222425689",
  "pdf_url": "https://arxiv.org/pdf/2610.21886",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e7e5jn6vch3rw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.21886",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.21886"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Low-Scale See-Saw Mechanism and the Majorana Nature of Heavy Neutrinos",
  "title_text": "Low-Scale See-Saw Mechanism and the Majorana Nature of Heavy Neutrinos",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/e7e5jn6vch3rw",
  "venue": "arXiv",
  "versions": []
}