{
  "abstract": "The LUX-ZEPLIN (LZ) Collaboration recently reported a candidate event consistent with a high-energy nuclear recoil, motivating a possible interpretation by Lee, Takahashi, and Tsai involving the production of an invisible baryon-number-two scalar with a mass near $1.85$ GeV. Motivated by this hypothetical scenario, we investigate the $J^P=0^+$ $uuddss$ hexaquark system using QCD sum rules. We consider five local diquark-diquark-diquark interpolating currents with different scalar and axial-vector diquark combinations, together with a baryon-baryon current constructed from two $Λ$-type baryon currents. The operator product expansions are calculated up to dimension sixteen, and their numerical behaviors are examined under different OPE truncations. Among the currents considered, only the $SU(3)_{\\rm flavor}$-singlet current $J_{SSS}$, consisting of three scalar color-$\\bar{\\mathbf{3}}_C$ diquarks, yields a low-mass solution at $D=12$, with $M_{SSS}=1.85^{+0.19}_{-0.20}$ GeV. Interestingly, scalar color-$\\bar{\\mathbf{3}}_C$ diquarks belong to the flavor $\\bar{\\mathbf{3}}_F$ representation, and their local color-singlet construction has a unique nonvanishing flavor structure, $[ud][ds][su]$, corresponding to $uuddss$. Analogous all-scalar-diquark currents vanish for other flavor configurations, such as $uuuddd$ and $uuudds$. Together with our QCD sum-rule results, this property highlights the special role of the all-scalar-diquark configuration, $[ud][ds][su]$, as a possible deeply bound structure. However, the higher-dimensional OPE contributions exhibit significant truncation dependence, and the low-mass solution remains conditional on the adopted OPE truncation rather than constituting a fully controlled mass prediction.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.25925",
  "author_total": 2,
  "authors": [
    {
      "name": "Wei-Han Tan"
    },
    {
      "name": "Hua-Xing Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/67p3crqnwdsve.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.25925",
  "fulltext_url": null,
  "id": "67p3crqnwdsve",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.25925",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7223012175",
  "pdf_url": "https://arxiv.org/pdf/2610.25925",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/67p3crqnwdsve.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.25925",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.25925"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Exploring a low-mass H dibaryon in light of the LZ event: A QCD sum rule study",
  "title_text": "Exploring a low-mass H dibaryon in light of the LZ event: A QCD sum rule study",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/67p3crqnwdsve",
  "venue": "arXiv",
  "versions": []
}