{
  "abstract": "We present a new and upgraded analysis of the inclusive weak radiative decay of the $B$ meson in the standard model and beyond. The ${\\mathcal O}(α_s)$ perturbative corrections are included in a formally complete manner. At the order $α_s^2$, exact dependence on the charm quark mass is calculated for the dominant corrections, which removes a sizeable uncertainty that was present in all the previous analyses. The global normalization factor and many of the non-perturbative contributions are expressed in terms of the kinetic-scheme mass of the $b$-quark and the heavy-quark-expansion matrix elements. These parameters are adopted from the most recent semileptonic fits that include ${\\mathcal O}(α_s^3)$ corrections and up-to-date experimental results. We find ${\\mathcal B}_{sγ}^{\\rm SM} = (3.54 \\pm 0.14)\\times 10^{-4}$ for the CP- and isospin-averaged branching ratio of the considered decay in the standard model, with a lower cut on the photon energy $E_γ> 1.6\\,{\\rm GeV}$. It agrees with the current experimental average ${\\mathcal B}_{sγ}^{\\rm exp} = (3.49 \\pm 0.19)\\times 10^{-4}$, which provides constraints on beyond standard model physics. In particular, we find $M_{H^\\pm} > 670\\,{\\rm GeV}$ at $95\\%\\,{\\rm C.L.}$ for the charged Higgs boson mass in the two-Higgs-doublet model~II.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.29863",
  "author_total": 14,
  "authors": [
    {
      "name": "M. Misiak"
    },
    {
      "name": "H. M. Asatrian"
    },
    {
      "name": "K. Brune"
    },
    {
      "name": "M. Czaja"
    },
    {
      "name": "M. Czakon"
    },
    {
      "name": "M. Fael"
    },
    {
      "name": "C. Greub"
    },
    {
      "name": "T. Huber"
    },
    {
      "name": "F. Lange"
    },
    {
      "name": "L. T. Moos"
    },
    {
      "name": "M. Niggetiedt"
    },
    {
      "name": "A. Rehman"
    },
    {
      "name": "K. Schönwald"
    },
    {
      "name": "M. Steinhauser"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0jepqbtqskw0b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29863",
  "fulltext_url": null,
  "id": "0jepqbtqskw0b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29863",
  "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": "W7204868966",
  "pdf_url": "https://arxiv.org/pdf/2608.29863",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0jepqbtqskw0b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29863",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29863"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "The inclusive $\\bar B \\to X_s γ$ decay rate with higher precision",
  "title_text": "The inclusive B̅ → X_s γ decay rate with higher precision",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/0jepqbtqskw0b",
  "venue": "arXiv",
  "versions": []
}