{
  "abstract": "We postulate that the excesses of di-dijet events observed at the LHC are attributed to the production of four fourth-generation quarks $$b'$$ b ′ with a mass $$m_{b'}\\approx 2$$ m b ′ ≈ 2 TeV at few-TeV scales. The di-dijet signals around the four-jet invariant mass $$m_{4j}\\approx 8$$ m 4 j ≈ 8 TeV arise from a resonant $$b'b'\\bar{b}'\\bar{b}'$$ b ′ b ′ b ¯ ′ b ¯ ′ tetraquark production, where the dijet resonances of masses about 2 TeV correspond to $$b'\\bar{b}'$$ b ′ b ¯ ′ first excited states (color-octet scalars with the principal quantum number $$n=2$$ n = 2 ) in a Yukawa potential created by Higgs boson exchanges. Those around $$m_{4j}\\approx 3.6$$ m 4 j ≈ 3.6 TeV originate from a non-resonant $$b'b'\\bar{b}'\\bar{b}'$$ b ′ b ′ b ¯ ′ b ¯ ′ production, where the dijet resonances of masses 0.95 TeV correspond to $$b'\\bar{b}'$$ b ′ b ¯ ′ ground states (color-octet vectors with $$n=1$$ n = 1 ). It is shown that a $$b'\\bar{b}'$$ b ′ b ¯ ′ system with $$m_{b'}\\approx 2$$ m b ′ ≈ 2 TeV in the Yukawa potential does generate the aforementioned bound state spectrum. We then illustrate that the observed excesses can be accommodated in our setup by translating the fourth-generation model to the effective theories containing color-octet scalars and vectors available in the literature. Simply speaking, our scenario can be viewed as a TeV-scale analogue of the search for a fully charmed tetraquark via the four-muon channels $$X(6900)\\rightarrow (c\\bar{c})(c\\bar{c})\\rightarrow 4\\mu $$ X ( 6900 ) → ( c c ¯ ) ( c c ¯ ) → 4 μ at a GeV scale.",
  "abstract_shown": true,
  "affiliations": [
    "Academia Sinica"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Hsiang-nan Li",
      "orcid": "0000-0003-4080-4022"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4tczkyvy34d8z.bib",
  "cited_by": 0,
  "doi": "10.1140/epjc/s10052-026-16517-y",
  "fulltext_url": null,
  "id": "4tczkyvy34d8z",
  "issns": [
    "1434-6052",
    "1434-6044"
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  "landing_url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16517-y",
  "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": [
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      "feed-journal",
      "physics/high-energy"
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  "pdf_url": "https://link.springer.com/content/pdf/10.1140/epjc/s10052-026-16517-y.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/4tczkyvy34d8z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:18Z",
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  "subjects": [
    {
      "field": "physics",
      "origin": "feed-journal:physics/high-energy",
      "subfield": "high-energy"
    }
  ],
  "title": "LHC di-dijet excesses as signals of fourth-generation tetraquarks",
  "title_text": "LHC di-dijet excesses as signals of fourth-generation tetraquarks",
  "type": "peer-reviewed",
  "updated_at": "2026-10-31T00:20:43Z",
  "url": "https://research.draconitic.com/paper/4tczkyvy34d8z",
  "venue": "The European Physical Journal C",
  "versions": []
}