{
  "abstract": "A bstract : By incorporating the available leading-power results at $$ \\mathcal{O}\\left({\\alpha}_s\\right) $$ O α s and next-to-leading-power corrections at tree level, we compute the $$ \\mathcal{O}\\left({\\alpha}_s^2{\\beta}_0\\right) $$ O α s 2 β 0 contribution to the B → π form factors in the large-recoil region using the light-cone sum rule approach with B -meson light-cone distribution amplitudes. We find that the QCD corrections at $$ \\mathcal{O}\\left({\\alpha}_s^2{\\beta}_0\\right) $$ O α s 2 β 0 contribute approximately +6.1% compared to the tree-level result. Combining the light-cone sum rule predictions in the large-recoil region, lattice QCD results in the small-recoil region, we perform a combined fit for the B → π form factors across the full kinematic range. Utilizing these form factors, we update the branching ratios, lepton-flavor-universality ratio R π , forward-backward asymmetry $$ {\\mathcal{A}}_{\\mathrm{FB}} $$ A FB , flat term $$ {\\mathcal{F}}_{\\mathrm{H}} $$ F H and polarization asymmetry $$ {\\mathcal{A}}_{\\lambda_{\\ell }} $$ A λ ℓ of $$ B\\to \\pi \\mu {\\overline{\\nu}}_{\\mu } $$ B → πμ ν ¯ μ and $$ B\\to \\pi \\tau {\\overline{\\nu}}_{\\tau } $$ B → πτ ν ¯ τ decays. We also extract the Cabibbo-Kobayashi-Maskawa matrix element | V ub | = 3.73(14) × 10 ⁻³ . We find that the resulting shifts are generally small and remain within the uncertainties of previous analyses.",
  "abstract_shown": true,
  "affiliations": [
    "Nankai University",
    "Lanzhou University",
    "Institute of High Energy Physics, CAS",
    "University of Chinese Academy of Sciences"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yong-Kang Huang",
      "orcid": "0009-0009-9013-4259"
    },
    {
      "affs": [
        1,
        2,
        3
      ],
      "name": "Dong-Hao Li",
      "orcid": "0000-0002-6060-7926"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Cai-Dian Lü",
      "orcid": "0000-0002-5300-641X"
    },
    {
      "affs": [
        0
      ],
      "name": "Bo-Xuan Shi",
      "orcid": "0009-0008-2479-6783"
    },
    {
      "affs": [
        0
      ],
      "name": "Hui-Xin Yu",
      "orcid": "0009-0003-0340-6014"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2k1eagm9g84nj.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)199",
  "fulltext_url": "https://doi.org/10.1007/JHEP10(2026)199",
  "id": "2k1eagm9g84nj",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/article/10.1007/JHEP10(2026)199",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC770-798"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7223372949",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)199.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/2k1eagm9g84nj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)199",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1007/JHEP10(2026)199"
    },
    {
      "first_seen": "2026-10-30T13:45:35Z",
      "native_id": "929c479a67024f49a9f90f184f42b538",
      "source": "doaj",
      "url": "https://doi.org/10.1007/jhep10(2026)199"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Particle physics theoretical and experimental studies",
      "subfield": "high-energy"
    }
  ],
  "title": "Partial next-to-next-to-leading-order corrections to the B → π form factors from light-cone sum rules",
  "title_text": "Partial next-to-next-to-leading-order corrections to the B → π form factors from light-cone sum rules",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:45:35Z",
  "url": "https://research.draconitic.com/paper/2k1eagm9g84nj",
  "venue": "Journal of High Energy Physics",
  "versions": []
}