Çetin, Serkant Ali2024-04-252024-04-252023-12-192470-00292470-0010https://hdl.handle.net/11411/5319https://doi.org/10.1103/PhysRevD.108.032015A search for the charged-lepton-flavor-violating process Z -> e mu is presented, using 139 fb(-1) of root s = 13 TeV pp collision data collected by the ATLAS experiment at the LHC. An excess in the e mu invariant mass spectrum near the Z boson mass would be a striking signature of new physics. No excess is observed, and an upper limit B(Z -> e mu) < 2.62 x 10(-7) is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date.eninfo:eu-repo/semantics/openAccessArticle2-s2.0-8517276774810.1103/PhysRevD.108.032015Q1WOS:001084172600001