Aad GAbbott B.Abbott D.CAbed Abud AAbeling KAbhayasinghe D.K.Abidi S.HAbouzeid O.S.Abraham N.LAbramowicz H.2021-11-252021-11-252020-04Physical Review DOpen Access Volume 101, Issue 71 April 2020 Article number 07200124700010http://repositorio.unab.cl/xmlui/handle/ria/21072A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of s=13 TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb-1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015-2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV. © 2020 CERN. © 2020 CERN, for the ATLAS Collaboration.enArtículo