Search for a Heavy Neutral Particle Decaying to eμ, eτ, or μτ in pp Collisions at s =8TeV with the ATLAS Detector

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e$\pm$μ, e$\pm$τ, or μ$\pm$τ using 20.3fb-1 of pp collision data at s=8TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the standard model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of ντ in R-parity-violating supersymmetric models and the production of a lepton-flavor-violating Z′ vector boson. \copyright 2015 CERN. \copyright 2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.