{
  "abstract": "One-proton emission is a direct probe of nuclear structure near the proton drip line and plays a critical role in understanding exotic decay modes and nucleosynthesis processes. In this study, we investigate the half-lives of one-proton emitters for $71 \\leq Z \\leq 83$ odd-$Z$ nuclei by employing the WKB approximation with nuclear potentials obtained from the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) and, for comparison, the relativistic continuum Hartree-Bogoliubov theory (RCHB). We first compare the calculated half-lives with available experimental data. The inclusion of quadrupole deformation via the DRHBc hardly contributes to improving the predictions of half-lives for the deformed nuclei. We find that all the studied nuclei exhibit ground states with $|β_{2,{\\rm DRHBc}}| < 0.15$, and within this limited deformation range the spectroscopic factor provides the dominant contribution to the half-life, compared to the decay width. In particular, for nuclei exhibiting shape coexistence in DRHBc, such as $^{170}$Au, where the half-life varies significantly with the quadrupole deformation through its effect on the spectroscopic factor, we expect shape coexistence to exert a substantial influence on the variation of half-lives. Finally, we discuss the half-lives in consideration of shape coexistence. Our results indicate that the calculated half-life is governed not by the total-energy difference between coexisting minima but rather by the spectroscopic factor influenced by the deformation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.19601",
  "author_total": 3,
  "authors": [
    {
      "name": "Yongbeom Choi"
    },
    {
      "name": "Chang-Hwan Lee"
    },
    {
      "name": "Youngman Kim"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1c55w5n6xk91e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.19601",
  "fulltext_url": null,
  "id": "1c55w5n6xk91e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.19601",
  "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",
      "nucl-th"
    ],
    [
      "openalex",
      "3106|Nuclear physics research studies"
    ]
  ],
  "openalex": "W7203912980",
  "pdf_url": "https://arxiv.org/pdf/2608.19601",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1c55w5n6xk91e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:14Z",
      "native_id": "2608.19601",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.19601"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Proton emission half-lives and shape coexistence for $71 \\leq Z \\leq 83$ odd-$Z$ nuclei",
  "title_text": "Proton emission half-lives and shape coexistence for 71 ≤ Z ≤ 83 odd-Z nuclei",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:14Z",
  "url": "https://research.draconitic.com/paper/1c55w5n6xk91e",
  "venue": "arXiv",
  "versions": []
}