{
  "abstract": "The search for electroweak supersymmetric particles remains an important part of the LHC program since neutralinos and charginos with masses around a few hundred GeV are still compatible with the present constraints in compressed spectra. Run-2 searches for the ``golden channel'', $pp\\to\\widetildeχ_2^0\\widetildeχ_1^\\pm\\to\\widetildeχ_1^0 Z^{(*)}\\widetildeχ_1^0 W^{\\pm(*)}$, have reported mild excesses in parts of the soft two- and three-lepton data, with the corresponding simplified-model interpretations emphasizing $m_{\\widetildeχ_2^0}\\simeq m_{\\widetildeχ_1^\\pm}\\gtrsim200$~GeV and a neutralino mass difference near $20$~GeV. We study this configuration in the Minimal Supersymmetric Standard Model (MSSM) with the Generalized minimal Supergravity (GmSUGRA) boundary conditions, imposing the Higgs, flavor, collider, relic-density and direct-detection constraints relevant to the spectrum. For both signs of $μ$, the solutions compatible with the Planck experiment contain an almost pure bino $\\widetildeχ_1^0$ with mass about $260$--$266$~GeV and a nearly degenerate wino-like $\\widetildeχ_2^0/\\widetildeχ_1^\\pm$ pair near $280$~GeV. The resulting splitting, $Δm_{21}\\simeq18.5$--$19.1$~GeV, lies in the mass-difference region probed by the ATLAS and CMS soft-lepton searches and places the $Z^{(*)}/W^{(*)}$ decays below the on-shell gauge-boson thresholds. The same compressed hierarchy keeps the wino states thermally populated during freeze-out, so bino-wino coannihilation yields a neutralino relic abundance consistent with the Planck experiment while the surviving solutions remain compatible with the direct-detection experimental bounds. Thus, the GmSUGRA boundary conditions provide a high-scale realization of the compressed bino-wino spectrum relevant to the LHC soft-lepton channel.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.26533",
  "author_total": 5,
  "authors": [
    {
      "name": "Imtiaz Khan"
    },
    {
      "name": "Ali Muhammad"
    },
    {
      "name": "Tianjun Li"
    },
    {
      "name": "Shabbar Raza"
    },
    {
      "name": "Mussawir Khan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1y7jsm0ac0tc5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26533",
  "fulltext_url": null,
  "id": "1y7jsm0ac0tc5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26533",
  "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|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7214097894",
  "pdf_url": "https://arxiv.org/pdf/2609.26533",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1y7jsm0ac0tc5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.26533",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26533"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "The compressed bino--wino dark matter in the GmSUGRA and the LHC soft-lepton searches",
  "title_text": "The compressed bino--wino dark matter in the GmSUGRA and the LHC soft-lepton searches",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/1y7jsm0ac0tc5",
  "venue": "arXiv",
  "versions": []
}