{
  "abstract": "We construct exact hairy black holes in Lovelock--Horndeski gravity and establish a relation between horizon topology, scalar hair and covariant charges. Rooted in the dimensional reduction of higher-curvature gravity, this framework connects scalar--tensor dynamics to the low-energy description of heterotic strings. In five dimensions, a single fixed theory admits a continuous planar family and two isolated hyperbolic black holes. The hyperbolic solutions share a locally AdS metric with distinct scalar dressings, while the planar family is Weyl curved and has a freely varying horizon scale. Both branches carry scalar hair regular on the future horizon. The hyperbolic construction extends above four dimensions; compatibility of the displayed planar profile selects five and seven dimensions. Time translations of the scalar act through a global shift, which enters the complete covariant charge balance. Along the planar family, a changing bulk shift-charge density supplies this balance despite zero radial flux and vanishing horizon charge variation. The hyperbolic roots admit no horizon-scale variation at fixed couplings.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.17679",
  "author_total": 1,
  "authors": [
    {
      "name": "Tianhao Wu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a5n6xnbp2xdh8.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.17679",
  "fulltext_url": null,
  "id": "a5n6xnbp2xdh8",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.17679",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7213519011",
  "pdf_url": "https://arxiv.org/pdf/2609.17679",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a5n6xnbp2xdh8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.17679",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.17679"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Exact Hairy Black Holes in Higher-Curvature Scalar--Tensor Gravity",
  "title_text": "Exact Hairy Black Holes in Higher-Curvature Scalar--Tensor Gravity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/a5n6xnbp2xdh8",
  "venue": "arXiv",
  "versions": []
}