{
  "abstract": "For a stable compact quarkonium state in the pNRQCD multipole regime, chromoelectric polarizability arises at leading order from two E1 transitions through virtual color-octet states. For an unstable state, we define the corresponding response through the quadratic displacement of its complex resonance pole in a weak chromoelectric background, so that its real and imaginary parts describe field-induced shifts of the pole mass and width. Starting from a renormalized background-field correlator, we show that the resonance polarizability is given by the complete two-field kernel normalized by the energy derivative of the full inverse propagator at the pole. In an effective theory with explicitly separated intermediate sectors, the kernel contains the standard E1-octet-E1 contribution, the complete source response of decay channels already coupled at zero field, and local contributions. This distinction becomes essential above open-flavor threshold and reduces to the standard pNRQCD polarizability in the stable, energy-independent limit. A simple $D\\bar D$ realization for the $ψ(3770)$ gives the complex pole-residue factor $1/[1-σ'(z_ψ)]=0.800-0.336$, illustrating that threshold dressing can substantially modify both the magnitude and phase of the response. The resulting pole-based relation identifies the quantity required for a source-dependent coupled-channel determination of the chromoelectric polarizability of a heavy-quarkonium resonance.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.00611",
  "author_total": 1,
  "authors": [
    {
      "name": "Arkadiy I. Syamtomov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1vf1tqkcy1esf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.00611",
  "fulltext_url": null,
  "id": "1vf1tqkcy1esf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.00611",
  "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-ph"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7172377510",
  "pdf_url": "https://arxiv.org/pdf/2608.00611",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1vf1tqkcy1esf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2608.00611",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.00611"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Complex chromoelectric polarizability of a heavy-quarkonium resonance: pole response and channel-resolved effective-theory representation",
  "title_text": "Complex chromoelectric polarizability of a heavy-quarkonium resonance: pole response and channel-resolved effective-theory representation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/1vf1tqkcy1esf",
  "venue": "arXiv",
  "versions": []
}