The quest to discover supersymmetry at the ATLAS experiment

Abstract

The search for supersymmetry with the ATLAS experiment at the CERN Large Hadron Collider intensified after the discovery of the Higgs boson in 2012. The search programme expanded in both breadth and depth, profiting from the increased integrated luminosity and higher centre-of-mass energy of Run 2, and gaining new sensitivity to unexplored areas of supersymmetry parameter space through the use of new experimental signatures and innovative analysis techniques. This report summarises the supersymmetry searches at ATLAS using up to 140 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV, including the limits set on the production of gluinos, squarks, and electroweakinos for scenarios either with or without R-parity conservation, and including models where some of the supersymmetric particles are long-lived.

59 pages in total, author list starting page 42, 21 figures, published in Physics Reports. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2023-10

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• Trustworthy scientific inference with generative models
• General search for supersymmetric particles in scenarios with compressed mass spectra using proton-proton collisions at $\sqrt{s}$ = 13 TeV
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• Search potential for direct slepton pair production at the CEPC with $\sqrt{s}$ = 360 GeV
• Observation of tWZ production at the CMS experiment
• Parametric Coincidence in the Baryon to Dark Matter Ratio from Affleck-Dine Baryogenesis and UV Freeze-in Dark Matter
• Search for squarks and gluinos in $pp$ collisions at $\sqrt{s}=13$ TeV and $13.6$ TeV in events with $\tau$-leptons, jets and missing transverse momentum using the ATLAS detector
• Missing-mass search in forward-proton-tagged dilepton events with the ATLAS detector
• Searching for dark matter annihilation in the Sun with the IceCube Upgrade