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Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in fnal states with two same-sign or three leptons with the ATLAS detector

Springer Berlin Heidelberg

A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. The search targets a fnal state with exactly two leptons with same-sign electric charge or at least three leptons without any charge requirement. The analysed data set corresponds to an integrated luminosity of 139 fb−1 of proton-proton collisions collected at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC. Multiple signal regions are defned, targeting several SUSY simplifed models yielding the desired fnal states. A single control region is used to constrain the normalisation of the W Z + jets background. No signifcant excess of events over the Standard Model expectation is observed. The results are interpreted in the context of several supersymmetric models featuring R-parity conservation or R-parity violation, yielding exclusion limits surpassing those from previous searches. In models considering gluino (squark) pair production, gluino (squark) masses up to 2.2 (1.7) TeV are excluded at 95% confdence level.

Article

eng

Vancouver : University of British Columbia Library

10.14288/1.0447099

Science, Faculty of; TRIUMF; Non UBC; Physics and Astronomy, Department of

10.1007/JHEP02(2024)107

Faculty

http://creativecommons.org/licenses/by/4.0/