{
  "abstract": "We perform global fits of the electroweak sector of the Minimal Supersymmetric Standard Model (MSSM) using a comprehensive set of LEP searches, 34 Run 2 LHC searches, and 63 Run 2 LHC measurements. Scanning the bino, wino and Higgsino mass parameters, and the ratio of the Higgs vacuum expectation values, we find that for a light, bino $\\tildeχ_{1}^0$, the mass of the next-to-lightest neutralino must be $m_{\\tildeχ_{2}^0} \\gtrsim 760$ GeV. While MSSM electroweakinos can explain individual excesses observed by ATLAS and CMS in searches targeting compressed spectra, we find no scenarios that fit these excesses simultaneously. When we add a light gravitino, neutralinos are further excluded up to about 1 TeV, though this depends on their composition; Higgsino-dominated $\\tildeχ_{1}^0$ requires only $m_{\\tildeχ_{1}^0} \\approx m_{\\tildeχ_{2}^0} \\gtrsim 650$ GeV. Lastly, the newer LHC searches and measurements exclude a low-mass region that was preferred in a previous study. This is the most complete summary of collider constraints on the electroweakino sector of the MSSM performed to date.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12914",
  "author_total": 22,
  "authors": [
    {
      "name": "Peter Athron"
    },
    {
      "name": "Csaba Balázs"
    },
    {
      "name": "Andy Buckley"
    },
    {
      "name": "Jon Butterworth"
    },
    {
      "name": "Christopher Chang"
    },
    {
      "name": "Andrew Fowlie"
    },
    {
      "name": "Tomás E Gonzalo"
    },
    {
      "name": "Vinay Hegde"
    },
    {
      "name": "Ida-Marie Fauske Johansson"
    },
    {
      "name": "Adil Jueid"
    },
    {
      "name": "Tore Klungland"
    },
    {
      "name": "Anders Kvellestad"
    },
    {
      "name": "Farvah Mahmoudi"
    },
    {
      "name": "Gregory D Martinez"
    },
    {
      "name": "Holly Pacey"
    },
    {
      "name": "Tomasz Procter"
    },
    {
      "name": "Are Raklev"
    },
    {
      "name": "Roberto Ruiz de Austri"
    },
    {
      "name": "Pat Scott"
    },
    {
      "name": "Martin White"
    },
    {
      "name": "Yang Zhang"
    },
    {
      "name": "Pengxuan Zhu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/frc3ardfzcbv7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12914",
  "fulltext_url": null,
  "id": "frc3ardfzcbv7",
  "issns": [],
  "landing_url": "https://hal.science/hal-05759410v1",
  "language": "en",
  "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"
    ],
    [
      "hal",
      "0.phys"
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      "hal",
      "1.phys.hphe"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
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  "openalex": "W7213011994",
  "pdf_url": "https://arxiv.org/pdf/2609.12914",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/frc3ardfzcbv7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:37Z",
      "native_id": "hal-05759410",
      "source": "hal",
      "url": "https://hal.science/hal-05759410v1"
    },
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.12914",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12914"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "What has the LHC told us about the electroweakino sector of the Minimal Supersymmetric Standard Model?",
  "title_text": "What has the LHC told us about the electroweakino sector of the Minimal Supersymmetric Standard Model?",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/frc3ardfzcbv7",
  "venue": "HAL",
  "versions": []
}