{
  "abstract": "We investigate solar-neutrino spin--flavor precession (SFP) induced by magnetic moments in the three-active-flavor framework. For Majorana neutrinos, SFP can convert solar neutrinos into antineutrinos of different active flavors. In the Dirac case, SFP instead produces sterile right-handed states and can lead to the disappearance of active neutrinos. Using the full $6\\times6$ Hamiltonians and GS98 and AGSS09 solar profiles, we examine propagation-eigenvalue crossings at $B_\\perp=0$ and the projected magnetic couplings between the corresponding states. For normal mass ordering and $1\\leq E_ν/\\mathrm{MeV}\\leq20$, we confirm the absence of finite-density Majorana crossings. A magnetically coupled Dirac crossing emerges above approximately $12~\\mathrm{MeV}$ but involves only a subdominant electron-flavor component, limiting resonant disappearance. Nonresonant Majorana conversion nevertheless offers a distinctive lepton-number-violating solar $\\barν_e$ signal, motivating our sensitivity study for the Jinping Neutrino Experiment. For a proposed $3~\\mathrm{kt}$ detector operating for five to ten years, we project a 90\\% C.L. sensitivity of $P(ν_e\\to\\barν_e)\\simeq(0.85-1.3)\\times10^{-5}$. In the $μ_{12}$-only benchmark, optimistic solar-core transverse magnetic fields of $B_\\perp=7-10~\\mathrm{MG}$ imply a reach of $|μ_{12}|\\simeq(2.3-4.1)\\times10^{-13}\\,μ_B$, numerically below existing direct-scattering limits and commonly quoted stellar-cooling bounds. This could enable Jinping to provide one of the most stringent projected terrestrial sensitivities to Majorana transition magnetic moments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.14446",
  "author_total": 5,
  "authors": [
    {
      "name": "Pouya Bakhti"
    },
    {
      "name": "Sudip Jana"
    },
    {
      "name": "Chui-Fan Kong"
    },
    {
      "name": "Seodong Shin"
    },
    {
      "name": "Seokhoon Yun"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5958gk3j08dwx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.14446",
  "fulltext_url": null,
  "id": "5958gk3j08dwx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.14446",
  "language": null,
  "licence": "CC0-1.0",
  "licence_label": "CC0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/publicdomain/zero/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.SR"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7213249148",
  "pdf_url": "https://arxiv.org/pdf/2609.14446",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5958gk3j08dwx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.14446",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.14446"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Probe of Solar Neutrino Magnetic Moments through Spin-Flavor Precession: Resonance Structure and Antineutrino Appearance",
  "title_text": "Probe of Solar Neutrino Magnetic Moments through Spin-Flavor Precession: Resonance Structure and Antineutrino Appearance",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/5958gk3j08dwx",
  "venue": "arXiv",
  "versions": []
}