{
  "abstract": "We investigate how one-loop operator mixing reshapes the flavor sensitivity of lepton-number-violating dimension-7 SMEFT interactions. Using both bottom-up and top-down EFT approaches, we study the interplay of neutrinoless double beta decay ($0νββ$) and neutral current rare meson decays $K\\toπνν$, and $B\\to K^{(*)}νν$, which at tree level probe apparently disconnected quark- and lepton-flavor sectors. We show that loop mixing qualitatively changes this picture: flavor structures radiatively feed into one another, substantially extending the sensitivity to higher new-physics scales across operators and flavors. In the bottom-up EFT approach, this can make $0νββ$ highly sensitive even to operators involving heavier-generation quarks, while rare kaon and $B$ decays retain crucial complementary sensitivity to other flavor combinations. A top-down EFT approach example using a ultraviolet model involving scalar-leptoquark illustrates how the same effects can reorder the relative importance of different observables.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28382",
  "author_total": 4,
  "authors": [
    {
      "name": "Lukáš Gráf"
    },
    {
      "name": "Chandan Hati"
    },
    {
      "name": "Ana Martín-Galán"
    },
    {
      "name": "Oliver Scholer"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6n7pzd4mt565z.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28382",
  "fulltext_url": null,
  "id": "6n7pzd4mt565z",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28382",
  "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-ph"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7214214884",
  "pdf_url": "https://arxiv.org/pdf/2609.28382",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6n7pzd4mt565z.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.28382",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28382"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Flavorful Lepton-Number-Violating SMEFT: Loop Mixing, $0νββ$ and Rare Meson Decays",
  "title_text": "Flavorful Lepton-Number-Violating SMEFT: Loop Mixing, 0νββ and Rare Meson Decays",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/6n7pzd4mt565z",
  "venue": "arXiv",
  "versions": []
}