{
  "abstract": "Motivated by the LUX-ZEPLIN high-energy nuclear-recoil candidate, we ask whether solar evolution can distinguish dark-matter models that are degenerate in their leading xenon recoil response. We compare a split fermionic electroweak doublet with a specified inert scalar doublet, matching their masses, excitation energy, coherent transition interaction, and leading elastic nuclear response. This matching fixes the same direct-detection signal and the same optically thin first-capture source in the Sun, while leaving post-capture dynamics model dependent. We follow finite-temperature capture, orbital evolution, scattering, excited-state decay, escape, thermal entry, and annihilation. The different excited-state lifetimes generate distinct capture histories, but, for the specified cooling interaction, both retained populations thermalize and reach capture--annihilation equilibrium, yielding only a modest difference in their late annihilation rates. We also derive an analytic protected-capture criterion and test the result against shared halo, solar-composition, and nuclear-response variations. Although the total annihilation rates remain similar, model-dependent gauge-boson branching fractions and polarizations produce distinct neutrino spectra at production. A source-level comparison with published IceCube templates shows that the nominal partial $WW$ sources exceed the corresponding pure-$WW$ template limits, without constituting a detector-level exclusion or model discrimination. Solar evolution therefore provides a complementary probe of particle-model differences hidden by a matched xenon signal.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28218",
  "author_total": 3,
  "authors": [
    {
      "name": "Antonio Capolupo"
    },
    {
      "name": "Gabriele Pisacane"
    },
    {
      "name": "Raoul Serao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d6g59j51qwz84.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28218",
  "fulltext_url": null,
  "id": "d6g59j51qwz84",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28218",
  "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-ph"
    ],
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7214203130",
  "pdf_url": "https://arxiv.org/pdf/2609.28218",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d6g59j51qwz84.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.28218",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28218"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Solar capture and annihilation of fermionic and scalar dark matter motivated by the LUX-ZEPLIN high-recoil candidate",
  "title_text": "Solar capture and annihilation of fermionic and scalar dark matter motivated by the LUX-ZEPLIN high-recoil candidate",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/d6g59j51qwz84",
  "venue": "arXiv",
  "versions": []
}