{
  "abstract": "This work presents the first dedicated study of the $e^+e^-\\rightarrow Hγ$ production mode at the FCC-ee. The analysis exploits all foreseen FCC-ee running scenarios at and above the WW threshold. This study demonstrates that the $e^+e^-\\rightarrow Hγ$ process provides a novel and direct handle on the effective $Hγγ$ and $HZγ$ couplings through production, complementary to measurements based on Higgs decays. By combining measurements of multiple Higgs decay channels and center-of-mass energies, we show that an overall precision of 15% is achievable on the effective $HZγ$ coupling. In addition, unlike decay observables, this process is also sensitive to the relative sign of the coupling and allows a full resolution of the corresponding sign ambiguity. We compare the expected sensitivity to the projected bounds from direct measurements of the $γγ$ and $Zγ$ branching ratios at the HL-LHC and FCC-ee, as well as projections from global fits in the SMEFT framework.",
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  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.21104",
  "author_total": 5,
  "authors": [
    {
      "name": "Lena Herrmann"
    },
    {
      "name": "Sara Aumiller"
    },
    {
      "name": "Ken Mimasu"
    },
    {
      "name": "Louis Portalès"
    },
    {
      "name": "Michele Selvaggi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/550fvqqs3kn8k.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.21104",
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  "id": "550fvqqs3kn8k",
  "issns": [],
  "landing_url": "https://hal.science/hal-05781664v1",
  "language": "en",
  "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": [
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      "hep-ex"
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  "openalex": "W7213921164",
  "pdf_url": "https://arxiv.org/pdf/2609.21104",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/550fvqqs3kn8k.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:49Z",
      "native_id": "hal-05781664",
      "source": "hal",
      "url": "https://hal.science/hal-05781664v1"
    },
    {
      "first_seen": "2026-10-30T12:23:03Z",
      "native_id": "2609.21104",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.21104"
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Probing the Effective HZ$γ$ Coupling via H$γ$ Production at FCC-ee",
  "title_text": "Probing the Effective HZγ Coupling via Hγ Production at FCC-ee",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:03Z",
  "url": "https://research.draconitic.com/paper/550fvqqs3kn8k",
  "venue": "HAL",
  "versions": []
}