{
  "abstract": "The orientational treatment of deformed nuclei in high-energy nuclear collisions have two ways, a rigid rotor and a wave-function rotor, in which nuclear densities in laboratory frame are constructed differently. We calculate the one- and two-body densities (including Pauli blocking effects), body-axis contour multipoles, and geometric eccentricity variances under a leading-order ultracentral mapping for Ne-20 in a deformed harmonic-oscillator model in the rigid and wave-function rotors. At fixed deformation parameter $κ$ in the model, the two constructions can give different laboratory radial moments and pair correlations. The body-axis transition-kernel contours in the wave-function rotor are generally more compact along the symmetry axis, and $β_{20}$, $β_{40}$, $\\langle\\varepsilon_2^2\\rangle$ and $\\langle\\varepsilon_4^2\\rangle$ lie below the rigid-rotor results in a wide range of $κ$. The relations among these quantities in each rotor are nevertheless similar in most scanned parameter space: $β_{40}$ and $\\langle\\varepsilon_2^2\\rangle$ depend linearly on $β_{20}^{2}$, while the hexadecapole baseline-subtracted variance follows an approximate quadratic trend in the quadrupole one. The method can be extended to seek more sensitive quantities for rotational effects in the wave-function rotor.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.32386",
  "author_total": 3,
  "authors": [
    {
      "name": "Jian Deng"
    },
    {
      "name": "Hao-jie Xu"
    },
    {
      "name": "Qun Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/320p98gyqtfpm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.32386",
  "fulltext_url": null,
  "id": "320p98gyqtfpm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.32386",
  "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",
      "nucl-ex"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Nuclear physics research studies"
    ]
  ],
  "openalex": "W7223679070",
  "pdf_url": "https://arxiv.org/pdf/2610.32386",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/320p98gyqtfpm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:15Z",
      "native_id": "2610.32386",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.32386"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Orientational average in nuclear shape imaging: densities, correlations, and eccentricity in Ne-20",
  "title_text": "Orientational average in nuclear shape imaging: densities, correlations, and eccentricity in Ne-20",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:15Z",
  "url": "https://research.draconitic.com/paper/320p98gyqtfpm",
  "venue": "arXiv",
  "versions": []
}