CERN Accelerating science

ATLAS Slides
Report number	ATL-PHYS-SLIDE-2020-382
Title	Search for electroweak production of charginos and neutralinos in multileptonic final states with the ATLAS experiment
Author(s)	Aparo, Marco (University of Sussex)
Corporate author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Submitted to	5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.ATL-PHYS-SLIDE-2020-382
Submitted by	marco.aparo@cern.ch on 12 Oct 2020
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Wino pair production ; SUSY ; new physics ; neutralino ; chargino ; ATLAS ; CERN ; LHC ; multileptonic final state ; boson mediated ; R-Parity conservation ; SUSY
Abstract	Supersymmetry, or SUSY, is one of the proposed extensions of the Standard Model which represents a solution to some of the limitations of the latter, such as the hierarchy problem. It introduces new particle states which may be produced at the ATLAS experiment taking data at sqrt(s)=13 TeV at the Large Hadron Collider (LHC). Due to existing constraints on the value of the masses of strongly coupled SUSY particles, the electroweak production of weakly interacting sparticles may become the key mechanism to search for beyond-the-Standard-Model physics at the LHC. A search for electroweak production of charginos and neutralinos decaying to multileptonic final states using Run-2 data collected with the ATLAS experiment is presented. Results are interpreted is the context of simplified models in which charginos and neutralinos undergo R-parity-conserving decays via intermediate production of gauge and Higgs bosons.