{
  "abstract": "The hypernucleus $^{6}_Λ\\mathrm{Li}$ is unbound against proton emission, so its resonances appear in the low-momentum $p$--$^{5}_Λ\\mathrm{He}$ correlation function, which femtoscopy can measure. We compute this correlation function in an $α+Λ$ folding model of $^{5}_Λ\\mathrm{He}$: phenomenological $pα$ and $pΛ$ interactions are averaged over the internal $α$--$Λ$ motion, and a single $ΛN$ strength factor is fixed by the measured $^{6}_Λ\\mathrm{He}$ binding energy. The model places the $^{6}_Λ\\mathrm{Li}$ $1^{-}$ state at $E_{R}=0.60^{+0.11}_{-0.10}$~MeV with $Γ=0.18\\pm0.05$~MeV and produces a pronounced peak in $C(k^{*})$ near $31~\\mathrm{MeV}/c$. The predicted peak position, $k^{*}_{\\rm peak}=\\sqrt{2μE_{R}}=30.8\\pm2.6~\\mathrm{MeV}/c$, is uncertain mainly because of the measured $B_Λ(^{6}_Λ\\mathrm{He})$, not because of the $ΛN$ interaction. An exact partial-wave decomposition shows that the $P$ wave accounts for the entire enhancement over the Coulomb baseline, $79\\%$ of it from the $1^{-}$ channel. A Lednický--Lyuboshitz analysis restricted to $S$ waves therefore cannot describe this system. The maximum of the $1^{-}$ channel lies within $1\\%$ of $k^{*}_{\\rm peak}$, but the unresolved $2^{-}$ state and the momentum resolution shift the measured maximum upward by $2.4~\\mathrm{MeV}/c$ at $σ_{k^{*}}=3~\\mathrm{MeV}/c$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.07213",
  "author_total": 2,
  "authors": [
    {
      "name": "Dongsheng Li"
    },
    {
      "name": "Yifei Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5g9ws4myyj754.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.07213",
  "fulltext_url": null,
  "id": "5g9ws4myyj754",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.07213",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.07213",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5g9ws4myyj754.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.07213",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.07213"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Partial-wave decomposition of the $p$--$^{5}_Λ\\mathrm{He}$ correlation function: a femtoscopic route to the $^{6}_Λ\\mathrm{Li}$ resonance",
  "title_text": "Partial-wave decomposition of the p--^5_ΛHe correlation function: a femtoscopic route to the ^6_ΛLi resonance",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:40Z",
  "url": "https://research.draconitic.com/paper/5g9ws4myyj754",
  "venue": "arXiv",
  "versions": []
}