{
  "abstract": "The inclusive weak radiative $B$-meson decay provides important constraints on many popular extensions of the Standard Model. Some of the numerically relevant Next-to-Next-to-Leading-Order QCD corrections to its branching ratio have so far been evaluated using an interpolation in the charm quark mass between the $m_c=0$ and $m_c \\gg m_b$ limits. In the current paper, we present their determination for the physical value of $m_c$, which required calculating hundreds of four-loop propagator diagrams with unitarity cuts and two mass scales. Our final result for the CP- and isospin-averaged branching ratio reads ${\\mathcal B}_{s γ}^{\\rm SM} = (3.54 \\pm 0.14)\\times 10^{-4}$ for $E_γ> 1.6\\,{\\rm GeV}$ in the decaying meson rest frame. It is in good agreement with the current Particle Data Group average ${\\mathcal B}_{s γ}^{\\rm exp} = (3.49 \\pm 0.19)\\times 10^{-4}$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.29864",
  "author_total": 8,
  "authors": [
    {
      "name": "M. Czaja"
    },
    {
      "name": "M. Czakon"
    },
    {
      "name": "T. Huber"
    },
    {
      "name": "M. Misiak"
    },
    {
      "name": "M. Niggetiedt"
    },
    {
      "name": "A. Rehman"
    },
    {
      "name": "K. Schönwald"
    },
    {
      "name": "M. Steinhauser"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/98vywbdx5az75.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29864",
  "fulltext_url": null,
  "id": "98vywbdx5az75",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29864",
  "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": "W7204872620",
  "pdf_url": "https://arxiv.org/pdf/2608.29864",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/98vywbdx5az75.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29864",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29864"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "NNLO QCD corrections to the weak radiative $B$-meson decay with exact dependence on $m_c$",
  "title_text": "NNLO QCD corrections to the weak radiative B-meson decay with exact dependence on m_c",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/98vywbdx5az75",
  "venue": "arXiv",
  "versions": []
}