{
  "abstract": "A bstract : We present a systematic study of the three-particle di-light-cone distribution amplitudes (DLCDAs) of the B -meson. They are defined through B -meson-to-vacuum matrix elements of trilocal HQET operators, in which the light antiquark and the gluon field-strength tensor are located on two back-to-back light rays. In this sense, the DLCDAs generalise the conventional B -meson light-cone distribution amplitudes to configurations where soft fields couple to collinear degrees of freedom in two distinct directions. As such, they parametrise the non-perturbative dynamics associated with non-factorisable soft-gluon contributions in rare and non-leptonic exclusive B -meson decays. We derive the complete Lorentz decomposition of the matrix elements of generic trilocal operators, identify eight independent DLCDAs, and organise them in a basis of definite twist. Using local operator identities and equations-of-motion constraints, we obtain tree-level relations for their normalisation integrals and first moments in terms of a minimal set of hadronic parameters. These relations allow us to construct simple momentum-space models for all independent DLCDAs. For the leading-twist distribution, we further incorporate the perturbative radiative tail at order α s and discuss its impact on the resulting parametrisation.",
  "abstract_shown": true,
  "affiliations": [
    "Karlsruhe Institute of Technology",
    "CERN, Theoretical Physics Department",
    "Universität Siegen",
    "Johannes Gutenberg University",
    "Universität Bonn"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Riccardo Bartocci",
      "orcid": "0009-0006-2685-6298"
    },
    {
      "affs": [
        1
      ],
      "name": "Philipp Böer",
      "orcid": "0000-0003-1205-3655"
    },
    {
      "affs": [
        2
      ],
      "name": "Thorsten Feldmann",
      "orcid": "0000-0001-7073-7700"
    },
    {
      "affs": [
        3
      ],
      "name": "Max Ferré",
      "orcid": "0009-0005-0244-0530"
    },
    {
      "affs": [
        4
      ],
      "name": "Nico Gubernari",
      "orcid": "0000-0002-2278-2707"
    },
    {
      "affs": [
        2
      ],
      "name": "Daniel Vladimirov",
      "orcid": "0009-0004-2061-4525"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fez1mdgfm8vzj.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)047",
  "fulltext_url": null,
  "id": "fez1mdgfm8vzj",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/10.1007/JHEP10(2026)047",
  "language": null,
  "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": [
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7165391407",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)047.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/fez1mdgfm8vzj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)047",
      "source": "crossref",
      "url": "https://link.springer.com/10.1007/JHEP10(2026)047"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Quantum Chromodynamics and Particle Interactions",
      "subfield": "high-energy"
    }
  ],
  "title": "Three-particle di-light-cone distribution amplitudes of the B-meson in heavy-quark effective theory",
  "title_text": "Three-particle di-light-cone distribution amplitudes of the B-meson in heavy-quark effective theory",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/fez1mdgfm8vzj",
  "venue": "Journal of High Energy Physics",
  "versions": []
}