Search for supersymmetry in events with four or more leptons in √s=13 TeV pp collisions with ATLAS

DOI
Publisher DOI
Abstract
Results from a search for supersymmetry in events with four or more charged leptons (electrons, muons and taus) are presented. The analysis uses a data sample corresponding to 36.1fb⁻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 taus are designed to target a range of supersymmetric scenarios that can be either enriched in or depleted of events involving the production and decay of a Z boson. Data yields are consistent with Standard Model expectations and results are used to set upper limits on the event yields from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence level in simplified models of general gauge mediated supersymmetry, where Higgsino masses are excluded up to 295 GeV. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to charged leptons, lower limits of 1.46, 1.06, and 2.25 TeV are placed on wino, slepton and gluino masses, respectively.
Date Issued
2018-08
Publication Type
Article
Subject(s)
Language(s)
en
Author(s)
Rimoldi, Marco
Mullier, Geoffrey
Miucci, Antonio
Merlassino, Claudia
Meloni, Federico
Ereditato, Antonio
Additional Credits
Journal
Physical review. D - particles, fields, gravitation, and cosmology
Publisher
American Physical Society
ISSN
1550-7998
Access(Rights)
open.access
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