{
  "abstract": "A prospective search for dark photons decaying into collimated, displaced muon pairs is presented for the electron-positron stage of the Future Circular Collider, FCC-ee. Assuming the full luminosity of the Higgs run at 240 GeV, the study probes a broad range of dark photon masses and couplings. The signature comprises two jets from a Z boson decay and two muon pairs from dark photons produced in Higgs decays. A kinematics-based selection achieves zero background while retaining high signal efficiency. Expected limits are set on the Higgs boson branching ratio to dark photons as a function of the dark photon mass and coupling.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.21648",
  "author_total": 4,
  "authors": [
    {
      "name": "Axel Gallén"
    },
    {
      "name": "Sarah Ben Abdesselem"
    },
    {
      "name": "Giulia Ripellino"
    },
    {
      "name": "Rebeca Gonzalez Suarez"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3w5zxkz08fczp.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.21648",
  "fulltext_url": null,
  "id": "3w5zxkz08fczp",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.21648",
  "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"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7213904986",
  "pdf_url": "https://arxiv.org/pdf/2609.21648",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3w5zxkz08fczp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:03Z",
      "native_id": "2609.21648",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.21648"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Dark photons in exotic Higgs boson decays at FCC-ee",
  "title_text": "Dark photons in exotic Higgs boson decays at FCC-ee",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:03Z",
  "url": "https://research.draconitic.com/paper/3w5zxkz08fczp",
  "venue": "arXiv",
  "versions": []
}