{
  "abstract": "None of the $S$-matrix representations used in analyses of nucleon-nucleon ($NN$) scattering above the inelastic threshold is implicitly unitary, general, and connected to low-energy (Stapp) parameters, and hence correspondingly related to the physical properties of the scattering. Such a representation is also needed to solve the corresponding inverse scattering problem. I present an $S$-matrix representation which satisfies these requirements. As a by-product, I derive a parametrization of an $n$-dimensional unitary matrix.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03969",
  "author_total": 1,
  "authors": [
    {
      "name": "N. A. Khokhlov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4hgd2833m2kff.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03969",
  "fulltext_url": null,
  "id": "4hgd2833m2kff",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03969",
  "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-th"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.03969",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4hgd2833m2kff.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.03969",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03969"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Parametrization of unitary matrices, parametrizing the symmetric $S$ matrix and the $NN$ $S$ matrix above the inelastic threshold",
  "title_text": "Parametrization of unitary matrices, parametrizing the symmetric S matrix and the NN S matrix above the inelastic threshold",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:35Z",
  "url": "https://research.draconitic.com/paper/4hgd2833m2kff",
  "venue": "arXiv",
  "versions": []
}