{
  "abstract": "The halo nucleon-core system is, by definition, a shallow state nucleus. The nucleon, in most cases a neutron, is loosely bound to the other nucleons forming the core. Accordingly, the system is located inside the universal window; the halo nucleon most likely resides far from the rest of the nucleons, showing a remarkable insensitivity to details of the interaction with the core. The system can be described using a simple nucleon-core interaction, and this description can be extended to the nucleon-nucleon-core system. Specifically, treating the neutron-core and the neutron-neutron-core systems with a Gaussian interaction as a reference, we show trajectories inside the universal window governed by interaction parameters determined from low-energy observables, such as the neutron-core binding energy, scattering length, and effective range. In this way, we can relate properties of different halo nuclei that might seem uncorrelated. In particular, we determine the three-body parameter, the binding momentum at the unitary limit, and show that the two-neutron halo nuclei emerge from that limit following a linear trajectory depending on the neutron-core range.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Physical Review C 114, 034001 (2026)",
  "arxiv": "2609.19997",
  "author_total": 4,
  "authors": [
    {
      "name": "A. Deltuva"
    },
    {
      "name": "M. Gattobigio"
    },
    {
      "name": "D. Jurčiukonis"
    },
    {
      "name": "A. Kievsky"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cg5dvn5ksgxad.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19997",
  "fulltext_url": null,
  "id": "cg5dvn5ksgxad",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.19997",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.19997",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cg5dvn5ksgxad.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.19997",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.19997"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Gaussian characterization of two-neutron halo nuclei",
  "title_text": "Gaussian characterization of two-neutron halo nuclei",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/cg5dvn5ksgxad",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/h64p-z766",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}