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A statistical combination of ATLAS Run 2 searches for charginos and neutralinos at the LHC

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arxiv 2402.08347 v2 pith:VNDKKNS6 submitted 2024-02-13 hep-ex

classification hep-ex
keywords searchesproductionatlascharginoscombinationsneutralinospure-winostatistical
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using $139\,$fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13\,$TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or higgsino production decaying via Standard Model $W$, $Z$, or $h$ bosons are combined to extend the mass reach to the produced SUSY particles by 30-100 GeV. The depth of the sensitivity of the original searches is also improved by the combinations, lowering the 95% CL cross-section upper limits by 15%-40%.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Search for long-lived particles using displaced vertices with low-momentum tracks in proton-proton collisions at $\sqrt{s}$ = 13 TeV

    hep-ex 2025-11 conditional novelty 6.0 of 10

    A displaced-vertex search for compressed-spectrum long-lived particles excludes top squarks up to about 1100 GeV and wino-like neutralinos up to about 550 GeV, the strongest limits on these benchmark models.

  2. Phenomenology of Fractionally Charged Particles: Two Reps Are Better Than One

    hep-ph 2025-07 accept novelty 6.0 of 10

    Adding a second fractionally charged particle can weaken existing LHC bounds on the heavy partner by factors of a few while boosting production of the light partner by up to three orders of magnitude, motivating new i...

  3. Cornering Natural SUSY at a Tera-$Z$ Factory

    hep-ph 2025-07 conditional novelty 4.0 of 10

    FCC-ee's Tera-Z electroweak precision program could probe natural supersymmetric particles up to multi-TeV masses, sometimes better than Higgs coupling measurements, assuming Standard Model theory uncertainties can be...

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