Abstract
Chapter 7 describes the conventional 3\(\ell \) search [2] which does not see an excess of observed events above the background prediction [2] using data collected in 2015 and 2016, corresponding to \(36.1~{\text {fb}}^{-1}\) of data collected. Another search by the ATLAS collaboration using the recursive jigsaw reconstruction (RJR) technique [3, 4] also using \(36.1~{\text {fb}}^{-1}\) of data collected between 2015 and 2016 [1] found excesses of three-lepton events in two regions, one targeting low-mass resonances and another utilizing ISR to target resonances with mass differences with respect to the LSP close to the Z boson mass.
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Resseguie, E. (2020). Studying the Excess in the Recursive Jigsaw Reconstruction (RJR) Search Using the Emulated RJR (eRJR) Technique. In: Electroweak Physics at the Large Hadron Collider with the ATLAS Detector. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-57016-3_8
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