Aad, G.Abbott, B.Abbott, D. C.Abud, A. AbedAbeling, K.Abhayasinghe, D. K.Çetin, Serkant Ali2024-07-182024-07-1820210031-90071079-7114https://doi.org/10.1103/PhysRevLett.127.051802https://hdl.handle.net/11411/7716A search for charged leptons with large impact parameters using 139 fb(-1) of root s = 13 TeV pp collision data from the ATLAS detector at the LHC is presented, addressing a long-standing gap in coverage of possible new physics signatures. Results are consistent with the background prediction. This search provides unique sensitivity to long-lived scalar supersymmetric lepton partners (sleptons). For lifetimes of 0.1 ns, selectron, smuon, and stau masses up to 720, 680, and 340 GeV, respectively, are excluded at 95% confidence level, drastically improving on the previous best limits from LEP.eninfo:eu-repo/semantics/openAccessExtensionSleptonsArticle2-s2.0-8511265082610.1103/PhysRevLett.127.051802534397238Q1127Q1WOS:000679181800005