{
  "abstract": "The photonuclear response reflects nuclear structure and the dynamics of excitation and decay, with neutron-emission channels retaining information that can be obscured in inclusive dissociation yields. We calculate specified-side and mutual neutron-tagged Coulomb-dissociation cross sections in ultraperipheral $^{96}_{44}\\mathrm{Ru}+{}^{96}_{44}\\mathrm{Ru}$ and $^{96}_{40}\\mathrm{Zr}+{}^{96}_{40}\\mathrm{Zr}$ collisions at $\\sqrt{s_{\\mathrm{NN}}}=200~\\mathrm{GeV}$ using an impact-parameter-dependent equivalent-photon framework with photonuclear inputs from TALYS calculations and ENDF evaluations. Across the two input sets, the predicted Ru/Zr ratios span $1.54$-$1.71$ for exact $1n$ and $2.49$-$3.09$ for $1n1n$, while inclusive $Xn$ (at least one neutron) and $XnXn$ ratios remain near unity at $0.96$-$0.99$ and $1.05$-$1.10$, respectively. The one-neutron ratios lie well above the corresponding flux-only $Z^2$ and $Z^4$ charge-scaling references, reflecting differences in the low-energy one-neutron response that are amplified by mutual tagging. This topology hierarchy identifies neutron-tagged isobar ratios as sensitive probes of photonuclear response, revealing response differences hidden in inclusive dissociation. These calculations also provide neutron-emission inputs for neutron-tagged vector-meson photoproduction in isobar collisions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.12951",
  "author_total": 7,
  "authors": [
    {
      "name": "Huda Nasrulloh"
    },
    {
      "name": "Xinbai Li"
    },
    {
      "name": "Zebo Tang"
    },
    {
      "name": "Kaiyang Wang"
    },
    {
      "name": "Luobing Wang"
    },
    {
      "name": "Xin Wu"
    },
    {
      "name": "Wangmei Zha"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/db9cpsc199qdd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.12951",
  "fulltext_url": null,
  "id": "db9cpsc199qdd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.12951",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Nuclear physics research studies"
    ]
  ],
  "openalex": "W7221514921",
  "pdf_url": "https://arxiv.org/pdf/2610.12951",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/db9cpsc199qdd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.12951",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.12951"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Predictions for neutron-tagged Coulomb dissociation in ultraperipheral Ru+Ru and Zr+Zr collisions",
  "title_text": "Predictions for neutron-tagged Coulomb dissociation in ultraperipheral Ru+Ru and Zr+Zr collisions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/db9cpsc199qdd",
  "venue": "arXiv",
  "versions": []
}