{
  "abstract": "Motivated by the recent CMS data on a family of $2^{++}$ states from $J/ψJ/ψ$ mass spectrum, we determine the masses of the $2^{++}$ $J/ψJ/ψ$ molecule and $cc\\bar c\\bar c$ states, by using (for the first time) the two lowest QCD Laplace Sum Rules (LSR) moment-ratios within the standard optimization criteria with respect to the LSR variable $τ$ and to the QCD continuum threshold $t_c$ implemented by the $R_{P/C}$ requirement that the lowest ground state (Pole) contribution to the LSR is larger than the QCD continuum one. Including factorized NLO perturbative and LO $G^4$ gluon condensates in the OPE, we obtain the the lowest ground state masses: $M^{2^{++}}_{J/ψJ/ψ}=6521(69)$ MeV and $M^{2^{++}}_{cc\\bar c \\bar c}=6347(99)$ MeV with the couplings\\,: $f^{2^{++}}_{J/ψJ/ψ}=96(14)$ keV and $f^{2^{++}}_{cc\\bar c \\bar c}= 151(29)$ keV normalized as $f_π=93$ MeV. The masses of the first radial excitations are :$M^{2^{++}{rad}}_{J/ψJ/ψ}=7987(251 )$ MeV and $M^{2^{++}{rad}}_{cc\\bar c \\bar c}=7739(221)$ MeV indicating a mass-splitting about $2.5 (M_{ψ(2S)}-M_{J/ψ})$. The decay constants are $f^{2^{++}{rad}}_{J/ψJ/ψ}=248(70)$ keV and: $f^{2^{++}{\\rm rad}}_{cc\\bar c\\bar c}=453(96) $ keV which are (unexpectedly) larger than the lowest ground state ones. These features may indicate some new dynamics compared to ordinary $\\bar cc$ states. We extend the analysis to the $0^{++}$ states and to the $ΥΥ$ family where the results are compiled in Tables 2 and 3. We critically review some other QCD spectral sum rules (QSSR) results. We suggest that the X(6600) might be a molecule ground state. Using a two-component mass mixing scheme, the X(6900) and X(7100) might be interpreted as a mixture of the $cc\\bar c\\bar c$ lowest ground state with its 1st radial excitation via an angle $θ=5^0$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18906",
  "author_total": 3,
  "authors": [
    {
      "name": "S Narison"
    },
    {
      "name": "Andry Rabemananjara"
    },
    {
      "name": "D Rabetiarivony"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e5yg69g8vb3jw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18906",
  "fulltext_url": null,
  "id": "e5yg69g8vb3jw",
  "issns": [],
  "landing_url": "https://hal.science/hal-05763111v1",
  "language": "en",
  "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-ex"
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      "hep-lat"
    ],
    [
      "arxiv",
      "hep-ph"
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    [
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      "0.phys"
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      "hal",
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      "hal",
      "1.phys.hlat"
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      "hal",
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    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7213523904",
  "pdf_url": "https://arxiv.org/pdf/2609.18906",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e5yg69g8vb3jw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05763111",
      "source": "hal",
      "url": "https://hal.science/hal-05763111v1"
    },
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18906",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18906"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "New Dynamics (?) of $J/ψJ/ψ$ and $ΥΥ$ families from QCD Laplace sum rules at NLO",
  "title_text": "New Dynamics (?) of J/ψJ/ψ and ΥΥ families from QCD Laplace sum rules at NLO",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/e5yg69g8vb3jw",
  "venue": "HAL",
  "versions": []
}