CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PROC-2023-004
Title	ATLAS searches for higgsinos with R-parity violating couplings in events with leptons
Author(s)	Ducu, Otilia Anamaria (Horia Hulubei National Institute of Physics and Nuclear Engineering (RO))
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2023
Imprint	02 Mar 2023
Number of pages	mult.
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	RPV SUSY ; higgsino ; same-charge leptons ; multi-leptons ; SUSY
Abstract	This document presents two searches for Supersymmetry through the direct production of pairs of higgsinos decaying into final states with leptons and ($b$-) jets. The analyses are performed using 139 fb$^{-1}$ of the 13 TeV proton-proton collision data collected with the ATLAS detector. The methods used to estimate the Standard Model and detector backgrounds are discussed, as well as their shortcomings. Finally, results in selected signal regions, and some exclusion limits, are presented illustrating the significant improvement over the previous exclusion limits.