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

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Abstract

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e^{±}μ^{∓}, e^{±}τ^{∓}, or μ^{±}τ^{∓} using 20.3 fb⁻¹ of pp collision data at √s̅ = 8  TeV 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 ν̅{τ} in R-parity-violating supersymmetric models and the production of a lepton-flavor-violating Z' vector boson.

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Keywords
Jets (Nuclear physics), Proton-proton interactions, Standard Model, Z bosons, Causality (Physics), Leptons (Nuclear physics), Transverse momentum, Muons, Radioactive decay, Standard Model
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CC BY 3.0 (Attribution), ©2015 CERN, for the ATLAS Collaboration
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