{
  "abstract": "We incorporate the $Δ(1232)$ resonance into pion-induced QED radiative corrections to neutron decay and inverse beta decay (IBD). Within the framework of heavy-baryon chiral perturbation theory with explicit $Δ$ degrees of freedom, we compute additional contributions and study their impact on IBD cross sections and on the renormalization of the nucleon isovector vector and axial-vector charges. $Δ$ resonance does not renormalize the vector charge. For the axial-vector charge, including the $Δ$ resonance improves convergence and reduces the QED radiative correction to the experiment-over-lattice-QCD ratio $g_A/\\left(g^\\mathrm{QCD}_A g_V\\right)$. $Δ$ resonance increases the pion-induced QED radiative corrections to IBD by a factor $1.2$-$1.3$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.22845",
  "author_total": 2,
  "authors": [
    {
      "name": "Oleksandr Tomalak"
    },
    {
      "name": "Yi-Bo Yang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/87kypkjeecbt6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.22845",
  "fulltext_url": null,
  "id": "87kypkjeecbt6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.22845",
  "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-ex"
    ],
    [
      "arxiv",
      "hep-lat"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "arxiv",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7204164107",
  "pdf_url": "https://arxiv.org/pdf/2608.22845",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/87kypkjeecbt6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:11Z",
      "native_id": "2608.22845",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.22845"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "$Δ$ resonance contributions to QED radiative corrections in neutron and inverse beta decay",
  "title_text": "Δ resonance contributions to QED radiative corrections in neutron and inverse beta decay",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:11Z",
  "url": "https://research.draconitic.com/paper/87kypkjeecbt6",
  "venue": "arXiv",
  "versions": []
}