{
  "abstract": "The effective field theory (EFT) of contact forces which describes few-nucleon systems at distance scales larger than the pion Compton wavelength ${\\rm EFT}({π\\hskip-0.54em /})$ can be defined in terms of momentum-dependent potentials that contain a fixed number of simple poles and generate the effective-range expansion to a given fixed order. These potentials provide a practical generalization of the standard ${\\rm EFT}({π\\hskip-0.54em /})$ power-counting scheme which, for instance, naturally accounts for the large effective ranges in the s-wave channels. Nucleon-nucleon phase shifts computed in this formulation of ${\\rm EFT}({π\\hskip-0.54em /})$ are compared to modern phase-shift analyses, and effective-range parameters are tabulated. The ${\\rm EFT}({π\\hskip-0.54em /})$ potentials, which provide a rational approximation of the S-matrix, are easily extended into the regime of pion physics through the inclusion of additional S-matrix poles and zeros, and provide an accurate description of data up to pion-production threshold. The potentials in this scheme are in an important sense weak over all relevant distance scales, and are therefore of utility for systematic calculations of many-nucleon observables.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29077",
  "author_total": 4,
  "authors": [
    {
      "name": "Silas R. Beane"
    },
    {
      "name": "Roland C. Farrell"
    },
    {
      "name": "Cameron P. Shotwell"
    },
    {
      "name": "Ubirajara van Kolck"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ckafgwprp9gz7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29077",
  "fulltext_url": null,
  "id": "ckafgwprp9gz7",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29077",
  "language": "en",
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  "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"
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      "arxiv",
      "nucl-th"
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      "1.phys.nucl"
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      "openalex",
      "3106|Nuclear physics research studies"
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  "openalex": "W7223199138",
  "pdf_url": "https://arxiv.org/pdf/2610.29077",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ckafgwprp9gz7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29077",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29077"
    },
    {
      "first_seen": "2026-11-04T12:20:53Z",
      "native_id": "hal-05850594",
      "source": "hal",
      "url": "https://hal.science/hal-05850594v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Reformulation of the pionless effective field theory for practical few- and many-body applications",
  "title_text": "Reformulation of the pionless effective field theory for practical few- and many-body applications",
  "type": "preprint",
  "updated_at": "2026-11-05T12:20:12Z",
  "url": "https://research.draconitic.com/paper/ckafgwprp9gz7",
  "venue": "arXiv",
  "versions": []
}