{
  "abstract": "We investigate the sensitivity to TeV-scale heavy Majorana neutrinos at a future muon-proton collider with $\\sqrt{s}=5.3$~TeV, based on 1~TeV muon and 7~TeV proton beams. We focus on the lepton-number-violating (LNV) process $μ^- p \\to jN$, followed by $N\\toμ^+W^-\\toμ^+J$, leading to the characteristic final state $jμ^+J$. Here, $j$ denotes the associated light jet from heavy-neutrino production, while $J$ denotes the fat jet originating from the hadronic decay of the highly boosted $W$ boson. This topology provides a clean experimental signature with strongly suppressed Standard Model backgrounds. A comprehensive signal and background analysis is performed using parton showering, fast detector simulation, and dedicated fat-jet reconstruction. We derive the projected $2σ$ exclusion limits on the muon-flavor mixing parameter $|V_{μN}|^2$ for integrated luminosities of $100$~fb$^{-1}$ and $1$~ab$^{-1}$. For heavy-neutrino masses in the range $1~\\mathrm{TeV}\\leq m_N\\leq3~\\mathrm{TeV}$, the projected upper limits on $|V_{μN}|^2$ range from $2.6\\times10^{-6}$ to $5.9\\times10^{-5}$ at $1$~ab$^{-1}$. These results show that a future $μp$ collider can provide competitive and complementary sensitivity to TeV-scale heavy Majorana neutrinos compared with other proposed high-energy facilities.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.05962",
  "author_total": 1,
  "authors": [
    {
      "name": "Yao-Bei Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4hrca0e5te7s0.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.05962",
  "fulltext_url": null,
  "id": "4hrca0e5te7s0",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.05962",
  "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",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7163665438",
  "pdf_url": "https://arxiv.org/pdf/2606.05962",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4hrca0e5te7s0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2606.05962",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.05962"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Probing TeV-scale Majorana neutrinos at a muon-proton collider via a lepton-number-violating fat-jet signature",
  "title_text": "Probing TeV-scale Majorana neutrinos at a muon-proton collider via a lepton-number-violating fat-jet signature",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/4hrca0e5te7s0",
  "venue": "arXiv",
  "versions": []
}