Search for "Electroweakinos" with the ATLAS Detector at the LHC
Alexander Mann (for the ATLAS Collaboration)
TL;DR
This paper reports on ATLAS searches for electroweakinos, charginos, and neutralinos at the LHC, aiming to find evidence of supersymmetry in the context of natural models with particles in the hundreds of GeV range.
Contribution
It presents new search results for electroweak production of supersymmetric particles using LHC Run-1 data, extending previous ATLAS analyses.
Findings
No significant excess observed over Standard Model predictions
Constraints placed on masses of charginos and neutralinos
Improved limits on supersymmetric parameter space
Abstract
Supersymmetry is one of the most popular extensions of the Standard Model of particle physics, as it offers solutions to several shortcomings of the Standard Model. Natural supersymmetric models favor masses for the new particles which are predicted by supersymmetry in the range of hundreds of GeV, well within the reach of the Large Hadron Collider at CERN. If squarks and gluinos are much heavier, the production of charginos and neutralinos may be the dominant production mode for supersymmetric particles. These proceedings present results from new searches for the production of charginos and neutralinos, focusing on the recent paper by the ATLAS collaboration that summarizes and extends the searches for the electroweak production of supersymmetric particles using data from Run-1 of the LHC.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · Distributed and Parallel Computing Systems