Search for supersymmetry in events with four or more charged leptons in 139 fb −1 of √s = 13 TeV pp collisions with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A search for supersymmetry in events with four or more charged leptons (electrons, muons and τ-leptons) is presented. The analysis uses a data sample corresponding to 139 fb−1 of proton-proton collisions delivered by the Large Hadron Collider at s = 13 TeV and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronically decaying τ-leptons are designed to target several supersymmetric models, while a general five-lepton signal region targets any new physics phenomena leading to a final state with five charged leptons. Data yields are consistent with Standard Model expectations and results are used to set upper limits on contributions from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence level in simplified models of general gauge-mediated supersymmetry, excluding higgsino masses up to 540 GeV. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to charged leptons, lower limits of 1.6 TeV, 1.2 TeV, and 2.5 TeV are placed on wino, slepton and gluino masses, respectively. [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number167
JournalJournal of High Energy Physics
Volume2021
Issue number7
DOIs
StatePublished - Jul 2021

Keywords

  • Beyond Standard Model
  • Hadron-Hadron scattering (experiments)
  • Supersymmetry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Search for supersymmetry in events with four or more charged leptons in 139 fb<sup> −1</sup> of √s = 13 TeV pp collisions with the ATLAS detector'. Together they form a unique fingerprint.

Cite this