{
  "abstract": "We study the subleading adjacent-collinear limit of tree-level color-ordered Yang--Mills amplitudes. In general dimensions, a Lorentz null rotation transports the polarizations of collinear legs along the collinear path while preserving transversality and gauge equivalence. The finite coefficient then separates into a pole-free hard contribution, computed by a channel-deleted Berends--Giele recursion, and an explicit contribution from the adjacent factorization channel. In four dimensions, we construct the same coefficient directly from a collinear-aware Britto-Cachazo-Feng-Witten recursion whose terminal data are closed MHV and $\\overline{\\rm MHV}$ formulas. Both constructions apply at arbitrary momentum fraction and extend to collinear gluons with distinct polarizations; at the symmetric split, the auxiliary-vector dependence cancels for equal polarizations and for the polarization-symmetrized mixed limit. Open--closed disk relations then give a direct construction of one-graviton Einstein--Yang--Mills amplitudes and their higher-derivative string corrections from the recursively generated coefficients. A self-contained \\textsc{Mathematica} implementation accompanies the paper.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.00120",
  "author_total": 2,
  "authors": [
    {
      "name": "Jin Dong"
    },
    {
      "name": "Stephan Stieberger"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2fdbe62ff33gh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.00120",
  "fulltext_url": null,
  "id": "2fdbe62ff33gh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.00120",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7206179357",
  "pdf_url": "https://arxiv.org/pdf/2609.00120",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2fdbe62ff33gh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.00120",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.00120"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Subleading Collinear Limits of Yang--Mills Amplitudes from Recursions",
  "title_text": "Subleading Collinear Limits of Yang--Mills Amplitudes from Recursions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/2fdbe62ff33gh",
  "venue": "arXiv",
  "versions": []
}