{
  "abstract": "We investigate whether astrophysical uncertainties in the local dark matter distribution can alleviate tensions between the higgsino interpretation of the LZ event and constraints from solar-capture neutrinos. We calculate the expected LZ signal over a wide range of Standard Halo Model parameters and using $N$-body hydrodynamical simulations of Milky Way-like galaxies that include the influence of the Large Magellanic Cloud. For the Standard Halo Model, the requirement $δ\\gtrsim 566~\\mathrm{keV}$ implies $v_0 \\gtrsim 240~\\mathrm{km\\,s^{-1}}$, independent of the Galactic escape speed. In the simulated halo, we find that $δ= 514~\\mathrm{keV}$ is the largest mass splitting capable of producing one event in LZ's $200~\\mathrm{keV}-300~\\mathrm{keV}$ recoil-energy range. We conclude that astrophysical uncertainties are insufficient to reconcile the higgsino interpretation of the LZ event with solar-capture neutrino constraints.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.15321",
  "author_total": 3,
  "authors": [
    {
      "name": "Aditya Ghosh"
    },
    {
      "name": "Ilumi Chavez"
    },
    {
      "name": "Chris Kelso"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1vjdt8msn70rf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.15321",
  "fulltext_url": null,
  "id": "1vjdt8msn70rf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.15321",
  "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",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
    ]
  ],
  "openalex": "W7213251072",
  "pdf_url": "https://arxiv.org/pdf/2609.15321",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1vjdt8msn70rf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.15321",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.15321"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Confronting the Higgsino Interpretation of the LZ Event with Astrophysical Uncertainties and the Solar Capture Constraints",
  "title_text": "Confronting the Higgsino Interpretation of the LZ Event with Astrophysical Uncertainties and the Solar Capture Constraints",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/1vjdt8msn70rf",
  "venue": "arXiv",
  "versions": []
}