{
  "abstract": "The LUX-ZEPLIN (LZ) collaboration has recently reported a single nuclear recoil event at a high recoil energy of about 250 keV. This has been interpreted as inelastic scattering of dark matter that is a supersymmetric Higgsino with a mass splitting between the neutral states of a few 100 keV. Such dark matter may be captured at high recoil in the Sun through scattering on heavy elements in it, and annihilate to $W^+W^-$ and $ZZ$, in turn giving rise to a neutrino flux detectable on Earth. Using measurements of atmospheric electron- and muon-neutrino fluxes by Super-Kamiokande and IceCube, we constrain thermal and non-thermal Higgsino dark matter, excluding inter-state mass splittings $\\lesssim 557$ keV. This disfavors Higgsino-like interpretations of the LZ event for standard halo velocities.",
  "abstract_shown": true,
  "affiliations": [
    "Centre for High Energy Physics , Indian Institute of Science , C. V. Raman Avenue , Bengaluru 560012 , India",
    "Department of Physics , Indian Institute of Science , C. V. Raman Avenue , Bengaluru 560012 , India",
    "Theory Division , Saha Institute of Nuclear Physics , 1/AF , Bidhannagar , Kolkata 700064 , India"
  ],
  "article_type": null,
  "arxiv": "2609.07807",
  "author_total": 12,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Debajit Bose",
      "orcid": "0000-0001-8594-8885"
    },
    {
      "affs": [
        0
      ],
      "name": "Akash Kumar Saha",
      "orcid": "0000-0002-3033-2589"
    },
    {
      "name": "Deep Jyoti Das",
      "orcid": "0000-0001-6184-5486"
    },
    {
      "affs": [
        0
      ],
      "name": "Rinchen Sherpa",
      "orcid": "0009-0008-4611-1044"
    },
    {
      "affs": [
        0
      ],
      "name": "Abhijeet Singh",
      "orcid": "0009-0004-8267-7919"
    },
    {
      "affs": [
        0
      ],
      "name": "Durba Ghosh",
      "orcid": "0000-0001-5474-6762"
    },
    {
      "affs": [
        0
      ],
      "name": "Jaya Doliya"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Subhadip Bouri",
      "orcid": "0000-0002-4971-8916"
    },
    {
      "affs": [
        0
      ],
      "name": "Biprajit Mondal",
      "orcid": "0009-0002-0844-2578"
    },
    {
      "affs": [
        2
      ],
      "name": "Ranjini Mondol",
      "orcid": "0000-0002-1331-0118"
    },
    {
      "affs": [
        0
      ],
      "name": "Nirmal Raj",
      "orcid": "0000-0002-4378-1201"
    },
    {
      "affs": [
        0
      ],
      "name": "Ranjan Laha",
      "orcid": "0000-0001-7104-5730"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/41fybp7mc8y2d.bib",
  "cited_by": 44,
  "doi": "10.48550/arxiv.2609.07807",
  "fulltext_url": null,
  "id": "41fybp7mc8y2d",
  "issns": [
    "2331-8422"
  ],
  "landing_url": "https://arxiv.org/abs/2609.07807",
  "language": "en",
  "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"
    ],
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      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
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  "openalex": "W7212016007",
  "pdf_url": "https://arxiv.org/pdf/2609.07807",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": "Cornell University",
  "ris": "https://research.draconitic.com/paper/41fybp7mc8y2d.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.07807",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.07807"
    },
    {
      "first_seen": "2026-11-07T13:20:44Z",
      "native_id": "W7212016007",
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      "url": "https://arxiv.org/abs/2609.07807"
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Not so good $ν$s for Higgsino dark matter as LZ excess: stringent limits from Super-Kamiokande and IceCube",
  "title_text": "Not so good νs for Higgsino dark matter as LZ excess: stringent limits from Super-Kamiokande and IceCube",
  "type": "preprint",
  "updated_at": "2026-11-07T13:20:44Z",
  "url": "https://research.draconitic.com/paper/41fybp7mc8y2d",
  "venue": "arXiv",
  "versions": []
}