PoS - Proceedings of Science
Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Higgs and New Physics (Poster Session). Scientific Secretary: Luciano Canton.
SUSY searches at √s = 13 TeV with two same-sign leptons or three leptons, jets and $E_{T}^{miss}$ at the ATLAS detector - Background estimation and latest analysis results.
P. Tornambe*  on behalf of the ATLAS Collaboration
Full text: pdf
Pre-published on: February 03, 2018
Published on: March 20, 2018
Abstract
This proceeding summarizes a search for supersymmetric phenomena in final states with two leptons (electrons or muons) of the same electric charge or three leptons, jets and missing transverse energy. While the same-sign or three leptons signature is present in many SUSY scenarios, SM processes leading to such events have very small cross-sections. Therefore, this analysis benefits from a small SM background in the signal regions leading to a good sensitivity especially in SUSY scenarios with compressed mass spectra or in which the R-parity is not conserved. The search was performed with the full dataset recorded with the ATLAS detector at the Large Hadron Collider during the year 2015 and 2016 corresponding to a total integrated luminosity of 36.1 fb$^{-1}$. No significant excess above the Standard Model expectations is observed. The results are interpreted in several simplified supersymmetric models featuring R-parity conservation or R-parity violation, extending the exclusion limits from previous searches.
DOI: https://doi.org/10.22323/1.314.0721
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