{
  "abstract": "Muon decays in a muon collider ring would produce TeV neutrino and antineutrino beams of electron and muon flavor. We study this flux in the forward $μ^+$ and $μ^-$ beam directions at a 10 TeV muon collider and introduce \\mint, a dedicated Monte Carlo simulation to model neutrino fluxes accounting for muon beam dynamics. We find that a benchmark detector at 5 km from the interaction point would see about $\\mathcal{O}(10^{9})$ neutrino interactions per year in a $\\sim3$~tonne fiducial volume with a beam spot size of $\\mathcal{O}(1)$~meter. We calculate the number of secondary muons and neutrinos generated by neutrino interactions in the rock upstream of the forward detectors and find that about two secondary high-energy and highly polarized muons from the rock would cross each detector per bunch crossing. Neutrino productions of charmed mesons and taus in the rock generate a small $ν_τ+\\barν_τ$ secondary flux, with $\\mathcal{O}(0.2)$ events per year in the detectors, likely too small to be observed. Wrong-sign neutrinos from similar processes, such as $ν_e+\\barν_μ$ in the $μ^-$ beam, are more numerous but still a fraction no larger than $\\mathcal{O}(10^{-8})$ of the number of TeV neutrino interactions. Finally, we outline how the large forward neutrino exposure can be used to search for beyond-the-Standard-Model particles produced in neutrino interactions, with examples of heavy neutral leptons coupled to electron and muon flavors through mixing or electromagnetic dipole operators.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.02718",
  "author_total": 4,
  "authors": [
    {
      "name": "Ju-Yeol Choi"
    },
    {
      "name": "Matheus Hostert"
    },
    {
      "name": "Peiran Li"
    },
    {
      "name": "Zhen Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0xrff0qx7pdv7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.02718",
  "fulltext_url": null,
  "id": "0xrff0qx7pdv7",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.02718",
  "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-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7172501957",
  "pdf_url": "https://arxiv.org/pdf/2608.02718",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0xrff0qx7pdv7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2608.02718",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.02718"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "The Forward Neutrino Flux and its Secondaries at a 10 TeV Muon Collider",
  "title_text": "The Forward Neutrino Flux and its Secondaries at a 10 TeV Muon Collider",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/0xrff0qx7pdv7",
  "venue": "arXiv",
  "versions": []
}