{
  "abstract": "I briefly discuss two apparent puzzles: (i) is the observation of $η'$(958) bound states in $^{11}$C at GSI [1] compatible with a nearly vanishing real part of $η'N$ scattering length [2]? and (ii) is the $Λ$ binding energy of the hypertriton (${{_Λ}^3}$H), the lightest particle-stable hypernucleus, very small (63$^{+38}_{-31}$ keV, J-PARC E73 [3]) or very large (523$\\pm$76 keV, MAMI [4])? Here, I suggest that MAMI's observed weak-decay pion momentum peak originates from ${{_Λ}^7}$He, not from ${{_Λ}^3}$H \\cite{Gal26}.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.40173",
  "author_total": 1,
  "authors": [
    {
      "name": "Avraham Gal"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fnpbw2y16ec89.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.40173",
  "fulltext_url": null,
  "id": "fnpbw2y16ec89",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.40173",
  "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",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.40173",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fnpbw2y16ec89.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:28Z",
      "native_id": "2610.40173",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.40173"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "Comments on $\\bf{η'}$ nuclei and on the $Λ$ binding energy of the hypertriton",
  "title_text": "Comments on bfη' nuclei and on the Λ binding energy of the hypertriton",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:47Z",
  "url": "https://research.draconitic.com/paper/fnpbw2y16ec89",
  "venue": "arXiv",
  "versions": []
}