{
  "abstract": "Massless particles, defined through Wigner's induced representations of the Poincaré group, are obtained as a limit of infinitely boosted massive particles wherein the massive little group undergoes an Inönü--Wigner contraction to the massless one. It is demonstrated that the spin-$s$ multiplet of a massive representation re-organizes into the direct sum of massless particles with helicities in the range $[-s,s]$. This group theoretic result is the Hilbert space counterpart of the Stückelberg formulation of massive fields of spin $s$ in the high-energy limit, where the Stückelberg fields become independent massless fields of spins $s'\\leq s$ in integer steps. It therefore also provides the kinematic setting of the Goldstone equivalence theorem.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.11364",
  "author_total": 1,
  "authors": [
    {
      "name": "Kevin Nguyen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8a7bvn34ewj54.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.11364",
  "fulltext_url": null,
  "id": "8a7bvn34ewj54",
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  "landing_url": "https://arxiv.org/abs/2609.11364",
  "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",
      "hep-th"
    ],
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      "openalex",
      "3106|Particle physics theoretical and experimental studies"
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  "openalex": "W7212311342",
  "pdf_url": "https://arxiv.org/pdf/2609.11364",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8a7bvn34ewj54.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2609.11364",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.11364"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Massless contraction of massive particles in the infinite boost limit",
  "title_text": "Massless contraction of massive particles in the infinite boost limit",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/8a7bvn34ewj54",
  "venue": "arXiv",
  "versions": []
}