{
  "abstract": "A bstract : We present a solution to the strong CP problem in which a simple chiral U (1) gauge symmetry gives rise to an accidental Peccei-Quinn symmetry that is both explicitly and spontaneously broken by mirror QCD dynamics, yielding a framework without massless fermions or a light QCD axion. The model contains no stable domain walls or colored relics, and it accommodates a sufficiently high reheating temperature to account for the baryon asymmetry of the Universe via leptogenesis. Metastable domain walls and first-order mirror QCD phase transition generate a stochastic background of primordial gravitational waves. Additionally, one of the pseudo-Nambu-Goldstone bosons serves as a viable WIMP dark matter candidate. The gauge boson associated with the chiral U (1) gauge symmetry, which kinetically mixes with the Standard Model hypercharge gauge boson, provides a vector portal connecting dark matter to the Standard Model and plays a central role in the dark-matter phenomenology. Colored pseudo-Nambu-Goldstone bosons can be probed at the LHC through searches for dijet resonances, jets plus missing energy, multijet events with leptons, and displaced vertices.",
  "abstract_shown": true,
  "affiliations": [
    "The University of Tokyo",
    "Department of Physics, The University of Chicago",
    "The University of Tokyo Institutes for Advanced Study, The University of Tokyo"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Hajime Fukuda",
      "orcid": "0000-0003-0292-6459"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Keisuke Harigaya",
      "orcid": "0000-0001-6516-3386"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b86b9hgyv06qf.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)180",
  "fulltext_url": "https://doi.org/10.1007/JHEP10(2026)180",
  "id": "b86b9hgyv06qf",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/article/10.1007/JHEP10(2026)180",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC770-798"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7158270575",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)180.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/b86b9hgyv06qf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)180",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1007/JHEP10(2026)180"
    },
    {
      "first_seen": "2026-10-30T13:45:33Z",
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      "url": "https://doi.org/10.1007/jhep10(2026)180"
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  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Particle physics theoretical and experimental studies",
      "subfield": "high-energy"
    }
  ],
  "title": "Accidental Peccei-Quinn symmetry from chiral gauge symmetry and mirror QCD",
  "title_text": "Accidental Peccei-Quinn symmetry from chiral gauge symmetry and mirror QCD",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:45:33Z",
  "url": "https://research.draconitic.com/paper/b86b9hgyv06qf",
  "venue": "Journal of High Energy Physics",
  "versions": []
}